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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andreotti M, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Badalov A, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Borsato M, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Caponio F, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Counts I, Couturier B, Cowan GA, Craik DC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, Dalseno J, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Donleavy S, Dordei F, Dorigo M, Dorosz P, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Esen S, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gambetta S, Gandelman M, Gandini P, Gao Y, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Giani' S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grillo L, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Hafkenscheid TW, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Henry L, Hernando Morata JA, van Herwijnen E, Heß M, Hicheur A, Hill D, Hoballah M, Hombach C, Hulsbergen W, Hunt P, Hussain N, Hutchcroft D, Hynds D, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Jurik N, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Langhans B, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lu H, Lucchesi D, Luo H, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Manzali M, Maratas J, Marconi U, Marin Benito C, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martinez Vidal F, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Mazurov A, McCann M, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morandin M, Morawski P, Mordà A, Morello MJ, Mountain R, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater G, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palombo F, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo L, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pearce A, Pellegrino A, Pepe Altarelli M, Perazzini S, Perez Trigo E, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Pessina G, Petridis K, Petrolini A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Pistone A, Playfer S, Plo Casasus M, Polci F, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rachwal B, Rademacker JH, Rakotomiaramanana B, Rama M, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Reichert S, Reid MM, Dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith E, Smith J, Smith M, Snoek H, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spinella F, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'jampens S, Teklishyn M, Tellarini G, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, de Vries JA, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Observation of photon polarization in the b→sγ transition. PHYSICAL REVIEW LETTERS 2014; 112:161801. [PMID: 24815636 DOI: 10.1103/physrevlett.112.161801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Indexed: 06/03/2023]
Abstract
This Letter presents a study of the flavor-changing neutral current radiative B±→K±π∓π±γ decays performed using data collected in proton-proton collisions with the LHCb detector at 7 and 8 TeV center-of-mass energies. In this sample, corresponding to an integrated luminosity of 3 fb-1, nearly 14 000 signal events are reconstructed and selected, containing all possible intermediate resonances with a K±π∓π± final state in the [1.1,1.9] GeV/c2 mass range. The distribution of the angle of the photon direction with respect to the plane defined by the final-state hadrons in their rest frame is studied in intervals of K±π∓π± mass and the asymmetry between the number of signal events found on each side of the plane is obtained. The first direct observation of the photon polarization in the b→sγ transition is reported with a significance of 5.2σ.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andreotti M, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Badalov A, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Borsato M, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Counts I, Couturier B, Cowan GA, Craik DC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, Dalseno J, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Donleavy S, Dordei F, Dorigo M, Dorosz P, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grillo L, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Hafkenscheid TW, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Heß M, Hicheur A, Hill D, Hoballah M, Hombach C, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Jurik N, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lu H, Lucchesi D, Luisier J, Luo H, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Manzali M, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Mazurov A, McCann M, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morandin M, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater G, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo L, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Pessina G, Petridis K, Petrolini A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Pistone A, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rachwal B, Rademacker JH, Rakotomiaramanana B, Rama M, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith E, Smith J, Smith M, Snoek H, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spinella F, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, de Vries JA, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Search for Majorana neutrinos in B- → π+ μ- μ- decays. PHYSICAL REVIEW LETTERS 2014; 112:131802. [PMID: 24745405 DOI: 10.1103/physrevlett.112.131802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Indexed: 06/03/2023]
Abstract
A search for heavy Majorana neutrinos produced in the B- → π+ μ- μ- decay mode is performed using 3 fb(-1) of integrated luminosity collected with the LHCb detector in pp collisions at center-of-mass energies of 7 and 8 TeV at the LHC. Neutrinos with masses in the range 250 to 5000 MeV and lifetimes from zero to 1000 ps are probed. In the absence of a signal, upper limits are set on the branching fraction B(B- → π+ μ- μ-) as functions of neutrino mass and lifetime. These limits are on the order of 10(-9) for short neutrino lifetimes of 1 ps or less. Limits are also set on the coupling between the muon and a possible fourth-generation neutrino.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andreotti M, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Badalov A, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Borsato M, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, Dalseno J, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Donleavy S, Dordei F, Dorosz P, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grillo L, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Hafkenscheid TW, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Heß M, Hicheur A, Hill D, Hoballah M, Hombach C, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Jurik N, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Khanji B, Klaver S, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lu H, Lucchesi D, Luisier J, Luo H, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Mazurov A, McCann M, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morandin M, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater G, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo L, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Pessina G, Petridis K, Petrolini A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rachwal B, Rademacker JH, Rakotomiaramanana B, Rama M, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reichert S, Reid MM, Dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith E, Smith J, Smith M, Snoek H, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'jampens S, Teklishyn M, Tellarini G, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, de Vries JA, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Warrington N, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of the Bs(0) → Ds-Ds+ and Bs(0) → D-Ds+ effective lifetimes. PHYSICAL REVIEW LETTERS 2014; 112:111802. [PMID: 24702350 DOI: 10.1103/physrevlett.112.111802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Indexed: 06/03/2023]
Abstract
The first measurement of the effective lifetime of the B(s)(0) meson in the decay B(s)(0) → Ds-Ds+ is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb(-1), collected by the LHCb experiment. The measured value of the B(s)(0) → Ds-Ds+ effective lifetime is 1.379 ± 0.026 ± 0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B(s)(0) mass eigenstate of ΓL = 0.725 ± 0.014 ± 0.009 ps(-1). The B(s)(0) lifetime is also measured using the flavor-specific B(s)(0)→ D-Ds+ decay to be 1.52 ± 0.15 ± 0.01 ps.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andreotti M, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Badalov A, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grillo L, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Hafkenscheid TW, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Heß M, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCann M, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater G, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rachwal B, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reichert S, Reid MM, Dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Sutcliffe W, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'jampens S, Teklishyn M, Tellarini G, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Observation of B(s)(0) → J/ψ f1(1285) decays and measurement of the f1(1285) mixing angle. PHYSICAL REVIEW LETTERS 2014; 112:091802. [PMID: 24655242 DOI: 10.1103/physrevlett.112.091802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Indexed: 06/03/2023]
Abstract
Decays of B(s)(0) and B(0) mesons into J/ψ π+π-π+π- final states, produced in pp collisions at the LHC, are investigated using data corresponding to an integrated luminosity of 3 fb-1 collected with the LHCb detector. B(s)(0) → J/ψ f1(1285) decays are seen for the first time, and the branching fractions are measured. Using these rates, the f1(1285) mixing angle between strange and nonstrange components of its wave function in the qq structure model is determined to be ±(24.0-2.6-0.8+3.1+0.6)°. Implications on the possible tetraquark nature of the f1(1285) are discussed.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Badalov A, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grillo L, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Heß M, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rachwal B, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Sutcliffe W, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurements of indirect CP asymmetries in D0 → K- K+ and D0 → π- π+ decays. PHYSICAL REVIEW LETTERS 2014; 112:041801. [PMID: 24580438 DOI: 10.1103/physrevlett.112.041801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Indexed: 06/03/2023]
Abstract
A study of indirect CP violation in D0 mesons through the determination of the parameter AΓ is presented using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0 fb(-1), collected with the LHCb detector and recorded at the center-of-mass energy of 7 TeV at the LHC. The parameter AΓ is the asymmetry of the effective lifetimes measured in decays of D0 and D0 mesons to the CP eigenstates K- K+ and π- π+. Fits to the data sample yield AΓ(KK)=(-0.35±0.62±0.12)×10(-3) and AΓ(ππ)=(0.33±1.06±0.14)×10(-3), where the first uncertainties are statistical and the second systematic. The results represent the world's best measurements of these quantities. They show no difference in AΓ between the two final states and no indication of CP violation.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Badalov A, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grillo L, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Heß M, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rachwal B, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Sutcliffe W, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of CP violation in the phase space of B± → K+ K- π± and B± → π+ π- π± decays. PHYSICAL REVIEW LETTERS 2014; 112:011801. [PMID: 24483886 DOI: 10.1103/physrevlett.112.011801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Indexed: 06/03/2023]
Abstract
The charmless decays B± → K+ K- π± and B± → π+ π- π± are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb(-1) and center-of-mass energy of 7 TeV, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured to be A(CP)(B± → K+ K- π±) = -0.141±0.040 (stat)±0.018 (syst)±0.007(J/ψ K±) and A(CP)(B± → π+ π- π±) = 0.117±0.021 (stat)±0.009 (syst)±0.007(J/ψ K±), where the third uncertainty is due to the CP asymmetry of the B± → J/ψK± reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Badalov A, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dornan P, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grillo L, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Heß M, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rachwal B, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Sutcliffe W, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays. PHYSICAL REVIEW LETTERS 2013; 111:251801. [PMID: 24483738 DOI: 10.1103/physrevlett.111.251801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Indexed: 06/03/2023]
Abstract
Measurements of charm mixing parameters from the decay-time-dependent ratio of D0 → K+ π- to D0 → K- π+ rates and the charge-conjugate ratio are reported. The analysis uses data, corresponding to 3 fb(-1) of integrated luminosity, from proton-proton collisions at 7 and 8 TeV center-of-mass energies recorded by the LHCb experiment. In the limit of charge-parity (CP ) symmetry, the mixing parameters are determined to be x'2=(5.5±4.9)×10(-5), y'=(4.8±1.0)×10(-3), and RD=(3.568±0.066)×10(-3). Allowing for CP violation, the measurement is performed separately for D0 and D0 mesons yielding AD=(-0.7±1.9)%, for the direct CP-violating asymmetry, and 0.75<|q/p|<1.24 at the 68.3% confidence level, for the parameter describing CP violation in mixing. This is the most precise determination of these parameters from a single experiment and shows no evidence for CP violation.
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Aaij R, Abellan Beteta C, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Benayoun M, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cunliffe S, Currie R, D’Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Elsby D, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Karacson M, Karbach TM, Kenyon IR, Kerzel U, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez Asamar E, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perego DL, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Skwarnicki T, Smith NA, Smith E, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T’Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Uwer U, Vagnoni V, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wishahi J, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of J/ ψ polarization in pp collisions at [Formula: see text]. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2013; 73:2631. [PMID: 25814848 PMCID: PMC4370894 DOI: 10.1140/epjc/s10052-013-2631-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 10/15/2013] [Indexed: 05/28/2023]
Abstract
An angular analysis of the decay J/ψ→μ+μ- is performed to measure the polarization of prompt J/ψ mesons produced in pp collisions at [Formula: see text]. The dataset corresponds to an integrated luminosity of 0.37 fb-1 collected with the LHCb detector. The measurement is presented as a function of transverse momentum, pT, and rapidity, y, of the J/ψ meson, in the kinematic region 2
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hess M, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palczewski T, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skwarnicki T, Smith NA, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Van Dijk M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of form-factor-independent observables in the decay B0→K(*0)μ(+)μ(-). PHYSICAL REVIEW LETTERS 2013; 111:191801. [PMID: 24266467 DOI: 10.1103/physrevlett.111.191801] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Indexed: 06/02/2023]
Abstract
We present a measurement of form-factor-independent angular observables in the decay B(0)→K*(892)(0)μ(+)μ(-). The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb(-1), collected by the LHCb experiment in pp collisions at a center-of-mass energy of 7 TeV. Four observables are measured in six bins of the dimuon invariant mass squared q² in the range 0.1<q²<19.0 GeV²/c(4). Agreement with recent theoretical predictions of the standard model is found for 23 of the 24 measurements. A local discrepancy, corresponding to 3.7 Gaussian standard deviations is observed in one q² bin for one of the observables. Considering the 24 measurements as independent, the probability to observe such a discrepancy, or larger, in one is 0.5%.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen P, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Heß M, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, Dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Sutcliffe W, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, de Vries JA, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Observation of the decay B(c)(+) → B(s)(0)π+. PHYSICAL REVIEW LETTERS 2013; 111:181801. [PMID: 24237507 DOI: 10.1103/physrevlett.111.181801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Indexed: 06/02/2023]
Abstract
The result of a search for the decay B(c)(+) → B(s)(0) π+ is presented, using the B(s)(0) → D(s)(-)π+ and B(s)(0) → J/ψ Ø channels. The analysis is based on a data sample of pp collisions collected with the LHCb detector, corresponding to an integrated luminosity of 1 fb(-1) taken at a center-of-mass energy of 7 TeV, and 2 fb(-1) taken at 8 TeV. The decay B(c)(+) → B(s)(0)π+ is observed with significance in excess of 5 standard deviations independently in both decay channels. The measured product of the ratio of cross sections and branching fraction is [σ(B(c)(+))/σ(B(s)(0))] × B(B(c)(+)→ B(s)(0)π+) = [2.37 ± 0.31 (stat)± 0.11 (syst)(-0.13)(+0.17)(τ(B)(c)(+)))] × 10(-3), in the pseudorapidity range 2<η(B)<5, where the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the B(c)(+) lifetime. This is the first observation of a B meson decaying to another B meson via the weak interaction.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Cowie E, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hess M, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palczewski T, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Van Dijk M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of the CP asymmetry in B(+)→K(+)μ(+)μ(-) decays. PHYSICAL REVIEW LETTERS 2013; 111:151801. [PMID: 24160590 DOI: 10.1103/physrevlett.111.151801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Indexed: 06/02/2023]
Abstract
A measurement of the CP asymmetry in B(+)→K(+)μ(+)μ(-) decays is presented using pp collision data, corresponding to an integrated luminosity of 1.0 fb(-1), recorded by the LHCb experiment during 2011 at a center-of-mass energy of 7 TeV. The measurement is performed in seven bins of μ(+)μ(-) invariant mass squared in the range 0.05<q2<22.00 GeV2/c4, excluding the J/ψ and ψ(2S) resonance regions. Production and detection asymmetries are corrected for using the B(+)→J/ψK(+) decay as a control mode. Averaged over all the bins, the CP asymmetry is found to be A(CP)=0.000±0.033 (stat)±0.005 (syst)±0.007 (J/ψK), where the third uncertainty is due to the CP asymmetry of the control mode. This is consistent with the standard model prediction.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McSkelly B, McCarthy J, McNab A, McNulty R, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skwarnicki T, Smith NA, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Van Dijk M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Search for the lepton-flavor-violating decays B(s)0→e(±)μ(∓) and B0→e(±)μ(∓). PHYSICAL REVIEW LETTERS 2013; 111:141801. [PMID: 24138232 DOI: 10.1103/physrevlett.111.141801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Indexed: 06/02/2023]
Abstract
A search for the lepton-flavor-violating decays B(s)0→e(±)μ(∓) and B0→e(±)μ(∓) is performed with a data sample, corresponding to an integrated luminosity of 1.0 fb(-1) of pp collisions at √s=7 TeV, collected by the LHCb experiment. The observed number of B(s)0→e(±)μ(∓) and B0→e(±)μ(∓) candidates is consistent with background expectations. Upper limits on the branching fractions of both decays are determined to be B(B(s)0→e(±)μ(∓))<1.1(1.4)×10(-8) and B(B0→e(±)μ(∓))<2.8(3.7)×10(-9) at 90% (95%) confidence level (C.L.). These limits are a factor of 20 lower than those set by previous experiments. Lower bounds on the Pati-Salam leptoquark masses are also calculated, M(LQ)(B(s)0→e(±)μ(∓))>101 TeV/c(2) and M(LQ)(B0→e(±)μ(∓))>126 TeV/c(2) at 95% C.L., and are a factor of 2 higher than the previous bounds.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Cowie E, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hess M, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palczewski T, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Van Dijk M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Observation of a resonance in B+ → K+ μ+ μ- decays at low recoil. PHYSICAL REVIEW LETTERS 2013; 111:112003. [PMID: 24074076 DOI: 10.1103/physrevlett.111.112003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 08/20/2013] [Indexed: 06/02/2023]
Abstract
A broad peaking structure is observed in the dimuon spectrum of B+ → K+ μ+ μ- decays in the kinematic region where the kaon has a low recoil against the dimuon system. The structure is consistent with interference between the B+ → K+ μ+ μ- decay and a resonance and has a statistical significance exceeding six standard deviations. The mean and width of the resonance are measured to be 4191(-8)(+9) MeV/c2 and 65(-16)(+22) MeV/c2, respectively, where the uncertainties include statistical and systematic contributions. These measurements are compatible with the properties of the ψ(4160) meson. First observations of both the decay B+ → ψ(4160)K+ and the subsequent decay ψ(4160) → μ+ μ- are reported. The resonant decay and the interference contribution make up 20% of the yield for dimuon masses above 3770 MeV/c2. This contribution is larger than theoretical estimates.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicheur A, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, Mc Skelly B, McCarthy J, McNab A, McNulty R, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palczewski T, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skwarnicki T, Smith NA, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Van Dijk M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Precision measurement of the Λb(0) baryon lifetime. PHYSICAL REVIEW LETTERS 2013; 111:102003. [PMID: 25166658 DOI: 10.1103/physrevlett.111.102003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Indexed: 06/03/2023]
Abstract
The ratio of the Λb(0) baryon lifetime to that of the B(0) meson is measured using 1.0 fb(-1) of integrated luminosity in 7 TeV center-of-mass energy pp collisions at the LHC. The Λb(0) baryon is observed for the first time in the decay mode Λb(0)→J/ψpK-, while the B(0) meson decay used is the well known B(0)→J/ψπ+ K- mode, where the π+ K- mass is consistent with that of the K(*0)(892) meson. The ratio of lifetimes is measured to be 0.976±0.012±0.006, in agreement with theoretical expectations based on the heavy quark expansion. Using previous determinations of the B(0) meson lifetime, the Λb(0) lifetime is found to be 1.482±0.018±0.012 ps. In both cases, the first uncertainty is statistical and the second systematic.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Di Ruscio F, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Elsby D, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicheur A, Hicks E, Hill D, Hoballah M, Holtrop M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, Mc Skelly B, McCarthy J, McNab A, McNulty R, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skwarnicki T, Smith NA, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Van Dijk M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of CP violation in the phase space of B±→K± π+ π- and B±→K± K+ K- decays. PHYSICAL REVIEW LETTERS 2013; 111:101801. [PMID: 25166651 DOI: 10.1103/physrevlett.111.101801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Indexed: 06/03/2023]
Abstract
The charmless decays B±→K± π+ π- and B±→K± K+ K- are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb(-1), collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as ACP(B±→K± π+ π-)=0.032±0.008 (stat)±0.004 (syst)±0.007(J/ψK±) and ACP(B±→K± K+ K-)=-0.043±0.009 (stat)±0.003 (syst)±0.007(J/ψK±), where the third uncertainty is due to the CP asymmetry of the B±→J/ψK± reference mode. The significance of ACP(B±→K± K+ K-) exceeds three standard deviations and is the first evidence of an inclusive CP asymmetry in charmless three-body B decays. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.
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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Badalov A, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Cowie E, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hess M, Hicheur A, Hicks E, Hill D, Hoballah M, Holtrop M, Hombach C, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palczewski T, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Van Dijk M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of the Bs(0)→μ+ μ- branching fraction and search for B(0)→μ+ μ- decays at the LHCb experiment. PHYSICAL REVIEW LETTERS 2013; 111:101805. [PMID: 25166655 DOI: 10.1103/physrevlett.111.101805] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Indexed: 06/03/2023]
Abstract
A search for the rare decays Bs(0)→μ+ μ- and B(0)→μ+ μ- is performed at the LHCb experiment. The data analyzed correspond to an integrated luminosity of 1 fb(-1) of pp collisions at a center-of-mass energy of 7 TeV and 2 fb(-1) at 8 TeV. An excess of Bs(0)→μ+ μ- signal candidates with respect to the background expectation is seen with a significance of 4.0 standard deviations. A time-integrated branching fraction of B(Bs(0)→μ+ μ-)=(2.9(-1.0)(+1.1))×10(-9) is obtained and an upper limit of B(B(0)→μ+ μ-)<7.4×10(-10) at 95% confidence level is set. These results are consistent with the standard model expectations.
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Aaij R, Abellan Beteta C, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Benayoun M, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Cattaneo M, Cauet C, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik D, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Elsby D, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jing F, John M, Johnson D, Jones CR, Jost B, Kaballo M, Kandybei S, Karacson M, Karbach TM, Kenyon IR, Kerzel U, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez Asamar E, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martin L, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNulty R, Mcnab A, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perego DL, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, Dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Skwarnicki T, Smith NA, Smith E, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Uwer U, Vagnoni V, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wishahi J, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing F, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. First measurement of the CP-violating phase in Bs(0) → ϕϕ decays. PHYSICAL REVIEW LETTERS 2013; 110:241802. [PMID: 25165914 DOI: 10.1103/physrevlett.110.241802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Indexed: 06/03/2023]
Abstract
A first flavor-tagged measurement of the time-dependent CP-violating asymmetry in B(s)(0) → ϕϕ decays is presented. In this decay channel, the CP-violating weak phase arises due to CP violation in the interference between B(s)(0)-B(s)(0) mixing and the b → sss gluonic penguin decay amplitude. Using a sample of pp collision data corresponding to an integrated luminosity of 1.0 fb(-1) and collected at a center-of-mass energy of 7 TeV with the LHCb detector, 880 B(s)(0) → ϕϕ signal decays are obtained. The CP-violating phase is measured to be in the interval [-2.46,-0.76] rad at a 68% confidence level. The p value of the standard model prediction is 16%.
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Aaij R, Abellan Beteta C, Adametz A, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Benayoun M, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blanks C, Blouw J, Blusk S, Bobrov A, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Cattaneo M, Cauet C, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik D, Cunliffe S, Currie R, D’Ambrosio C, David P, David PNY, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Degaudenzi H, Del Buono L, Deplano C, Derkach D, Deschamps O, Dettori F, Di Canto A, Dickens J, Dijkstra H, Dogaru M, Domingo Bonal F, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Elsby D, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Harrison PF, Hartmann T, He J, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Ilten P, Jacobsson R, Jaeger A, Jans E, Jansen F, Jaton P, Jing F, John M, Johnson D, Jones CR, Jost B, Kaballo M, Kandybei S, Karacson M, Karbach TM, Kenyon IR, Kerzel U, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leroy O, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, von Loeben J, Lopes JH, Lopez Asamar E, Lopez-March N, Lu H, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Mangiafave N, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martin L, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Matveev M, Maurice E, Mazurov A, McCarthy J, McNulty R, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nisar S, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perego DL, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pugatch V, Puig Navarro A, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Rodrigues E, Rodriguez Perez P, Rogers GJ, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruiz H, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schleich S, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Skwarnicki T, Smith NA, Smith E, Smith M, Sobczak K, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T’Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Uwer U, Vagnoni V, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wishahi J, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing F, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhong L, Zvyagin A. Measurements of the branching fractions of [Formula: see text] decays. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2013; 73:2462. [PMID: 25814862 PMCID: PMC4370952 DOI: 10.1140/epjc/s10052-013-2462-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 05/16/2013] [Indexed: 06/04/2023]
Abstract
The branching fractions of the decay [Formula: see text] for different intermediate states are measured using data, corresponding to an integrated luminosity of 1.0 fb-1, collected by the LHCb experiment. The total branching fraction, its charmless component [Formula: see text] and the branching fractions via the resonant [Formula: see text] states ηc (1S) and ψ(2S) relative to the decay via a J/ψ intermediate state are [Formula: see text] Upper limits on the B+ branching fractions into the ηc (2S) meson and into the charmonium-like states X(3872) and X(3915) are also obtained.
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Aaij R, Abellan Beteta C, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Di Ruscio F, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Elsby D, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Karacson M, Karbach TM, Kenyon IR, Kerzel U, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez Asamar E, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martin L, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perego DL, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Skwarnicki T, Smith NA, Smith E, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Uwer U, Vagnoni V, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wishahi J, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing F, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. First observation of CP violation in the decays of B(s)0 mesons. PHYSICAL REVIEW LETTERS 2013; 110:221601. [PMID: 23767711 DOI: 10.1103/physrevlett.110.221601] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Indexed: 06/02/2023]
Abstract
Using pp collision data corresponding to an integrated luminosity of 1.0 fb(-1) and collected by LHCb in 2011 at a center-of-mass energy of 7 TeV, we report the measurement of direct CP violation in B(s)(0)→K(-)π(+) decays, A(CP)(B(s)(0)→K(-)π(+)=0.27±0.04 (stat)±0.01 (syst), with significance exceeding 5 standard deviations. This is the first observation of CP violation in the decays of B(s)(0) mesons. Furthermore, we provide an improved determination of direct CP violation in B(0)→K(+)π(-) decays, A(CP)(B(0)→K(+)π(-)=-0.080±0.007 (stat)±0.003 (syst), which is the most precise measurement of this quantity to date.
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Aaij R, Abellan Beteta C, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Benayoun M, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Cattaneo M, Cauet C, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik D, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Oyanguren Campos M, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Elsby D, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jing F, John M, Johnson D, Jones CR, Jost B, Kaballo M, Kandybei S, Karacson M, Karbach TM, Kenyon IR, Kerzel U, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, von Loeben J, Lohn S, Lopes JH, Lopez Asamar E, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martin L, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNulty R, Mcnab A, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perego DL, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Skwarnicki T, Smith NA, Smith E, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Uwer U, Vagnoni V, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wishahi J, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing F, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Determination of the X(3872) meson quantum numbers. PHYSICAL REVIEW LETTERS 2013; 110:222001. [PMID: 23767712 DOI: 10.1103/physrevlett.110.222001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Indexed: 06/02/2023]
Abstract
The quantum numbers of the X(3872) meson are determined to be J(PC)=1(++) based on angular correlations in B(+)→X(3872)K(+) decays, where X(3872)→π(+)π(-)J/ψ and J/ψ→μ(+)μ(-). The data correspond to 1.0 fb(-1) of pp collisions collected by the LHCb detector. The only alternative assignment allowed by previous measurements J(PC)=2(-+) is rejected with a confidence level equivalent to more than 8 Gaussian standard deviations using a likelihood-ratio test in the full angular phase space. This result favors exotic explanations of the X(3872) state.
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Aaij R, Abellan Beteta C, Adametz A, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Benayoun M, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blouw J, Blusk S, Bobrov A, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Cattaneo M, Cauet C, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik D, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Degaudenzi H, Del Buono L, Deplano C, Derkach D, Deschamps O, Dettori F, Di Canto A, Dickens J, Dijkstra H, Dogaru M, Domingo Bonal F, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Elsby D, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Harrison PF, Hartmann T, He J, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jing F, John M, Johnson D, Jones CR, Jost B, Kaballo M, Kandybei S, Karacson M, Karbach TM, Kenyon IR, Kerzel U, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leroy O, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, von Loeben J, Lohn S, Lopes JH, Lopez Asamar E, Lopez-March N, Lu H, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Mangiafave N, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martin L, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Matveev M, Maurice E, Mazurov A, McCarthy J, McNulty R, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nisar S, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perego DL, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pugatch V, Puig Navarro A, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Rodrigues E, Rodriguez Perez P, Rogers GJ, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruiz H, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schleich S, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Skwarnicki T, Smith NA, Smith E, Smith M, Sobczak K, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Uwer U, Vagnoni V, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voss C, Voss H, Waldi R, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wishahi J, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing F, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Search for rare B(0)((s))→μ(+)μ(-)μ(+)μ(-) decays. PHYSICAL REVIEW LETTERS 2013; 110:211801. [PMID: 23745860 DOI: 10.1103/physrevlett.110.211801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Indexed: 06/02/2023]
Abstract
A search for the decays B(0)((s))→μ(+)μ(-)μ(+)μ(-) and B(0)→μ(+)μ(-)μ(+)μ(-) is performed using data, corresponding to an integrated luminosity of 1.0 fb(-1), collected with the LHCb detector in 2011. The number of candidates observed is consistent with the expected background and, assuming phase-space models of the decays, limits on the branching fractions are set: B(B(s)(0)→μ(+)μ(-)μ(+)μ(-))<1.6(1.2)×10(-8) and B(B(0)→μ(+)μ(-)μ(+)μ(-))<6.6(5.3)×10(-9) at 95% (90%) confidence level. In addition, limits are set in the context of a supersymmetric model which allows for the B((s))(0) meson to decay into a scalar (S) and pseudoscalar particle (P), where S and P have masses of 2.5 GeV/c and 214.3 MeV/c, respectively, both resonances decay into μ(+)μ(-). The branching fraction limits for these decays are B(B(s)(0)→SP)<1.6(1.2)×10(-8) and B(B(0)→SP)<6.3(5.1)×10(-9) at 95% (90%) confidence level.
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Aaij R, Abellan Beteta C, Adametz A, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amhis Y, Anderlini L, Anderson J, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bates A, Bauer T, Bay A, Beddow J, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Benayoun M, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blanks C, Blouw J, Blusk S, Bobrov A, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Büchler-Germann A, Burducea I, Bursche A, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Cattaneo M, Cauet C, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Corti G, Couturier B, Cowan GA, Craik DC, Cunliffe S, Currie R, D’Ambrosio C, David P, David PNY, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Simone P, Decamp D, Deckenhoff M, Degaudenzi H, Del Buono L, Deplano C, Derkach D, Deschamps O, Dettori F, Di Canto A, Dickens J, Dijkstra H, Diniz Batista P, Dogaru M, Domingo Bonal F, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Elsby D, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garnier JC, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Harrison PF, Hartmann T, He J, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicks E, Hill D, Hoballah M, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Ilten P, Imong J, Jacobsson R, Jaeger A, Jahjah Hussein M, Jans E, Jansen F, Jaton P, Jean-Marie B, Jing F, John M, Johnson D, Jones CR, Jost B, Kaballo M, Kandybei S, Karacson M, Karbach TM, Kenyon IR, Kerzel U, Ketel T, Keune A, Khanji B, Kim YM, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leroy O, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, von Loeben J, Lopes JH, Lopez Asamar E, Lopez-March N, Lu H, Luisier J, Luo H, Mac Raighne A, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Mangiafave N, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martin L, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Matveev M, Maurice E, Mazurov A, McCarthy J, McGregor G, McNulty R, Meier F, Meissner M, Merk M, Merkel J, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Mylroie-Smith J, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perego DL, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pie Valls B, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pugatch V, Puig Navarro A, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Rodrigues E, Rodriguez Perez P, Rogers GJ, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruiz H, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santinelli R, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schleich S, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Skwarnicki T, Smith NA, Smith E, Smith M, Sobczak K, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T’Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Uwer U, Vagnoni V, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Videau I, Vieira D, Vilasis-Cardona X, Visniakov J, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wishahi J, Witek M, Witzeling W, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing F, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of the forward energy flow in pp collisions at [Formula: see text]. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2013; 73:2421. [PMID: 25814858 PMCID: PMC4370758 DOI: 10.1140/epjc/s10052-013-2421-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 03/22/2013] [Indexed: 05/26/2023]
Abstract
The energy flow created in pp collisions at [Formula: see text] is studied within the pseudorapidity range 1.9<η<4.9 with data collected by the LHCb experiment. The measurements are performed for inclusive minimum-bias interactions, hard scattering processes and events with an enhanced or suppressed diffractive contribution. The results are compared to predictions given by Pythia-based and cosmic-ray event generators, which provide different models of soft hadronic interactions.
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Adinolfi M, Aglieri Rinella G, Albrecht E, Bellunato T, Benson S, Blake T, Blanks C, Brisbane S, Brook NH, Calvi M, Cameron B, Cardinale R, Carson L, Contu A, Coombes M, D’Ambrosio C, Easo S, Egede U, Eisenhardt S, Fanchini E, Fitzpatrick C, Fontanelli F, Forty R, Frei C, Gandini P, Gao R, Garra Tico J, Giachero A, Gibson V, Gotti C, Gregson S, Gys T, Haines SC, Hampson T, Harnew N, Hill D, Hunt P, John M, Jones CR, Johnson D, Kanaya N, Katvars S, Kerzel U, Kim YM, Koblitz S, Kucharczyk M, Lambert D, Main A, Maino M, Malde S, Mangiafave N, Matteuzzi C, Mini’ G, Mollen A, Morant J, Mountain R, Morris JV, Muheim F, Muresan R, Nardulli J, Owen P, Papanestis A, Patel M, Patrick GN, Perego DL, Pessina G, Petrolini A, Piedigrossi D, Plackett R, Playfer S, Powell A, Rademacker JH, Ricciardi S, Rogers GJ, Sail P, Sannino M, Savidge T, Sepp I, Sigurdsson S, Soler FJP, Solomin A, Soomro F, Sparkes A, Spradlin P, Storaci B, Thomas C, Topp-Joergensen S, Torr N, Ullaland O, Vervink K, Voong D, Websdale D, Wilkinson G, Wotton SA, Wyllie K, Xing F, Young R. Performance of the LHCb RICH detector at the LHC. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2013; 73:2431. [PMID: 25814859 PMCID: PMC4371097 DOI: 10.1140/epjc/s10052-013-2431-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 04/07/2013] [Indexed: 06/02/2023]
Abstract
The LHCb experiment has been taking data at the Large Hadron Collider (LHC) at CERN since the end of 2009. One of its key detector components is the Ring-Imaging Cherenkov (RICH) system. This provides charged particle identification over a wide momentum range, from 2-100 GeV/c. The operation and control, software, and online monitoring of the RICH system are described. The particle identification performance is presented, as measured using data from the LHC. Excellent separation of hadronic particle types (π, K, p) is achieved.
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Aaij R, Abellan Beteta C, Adametz A, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back JJ, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Benayoun M, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blanks C, Blouw J, Blusk S, Bobrov A, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Cattaneo M, Cauet C, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Craik D, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Degaudenzi H, Del Buono L, Deplano C, Derkach D, Deschamps O, Dettori F, Di Canto A, Dickens J, Dijkstra H, Dogaru M, Domingo Bonal F, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Elsby D, Falabella A, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Harrison PF, Hartmann T, He J, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hicks E, Hill D, Hoballah M, Hombach C, Hopchev P, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Ilten P, Jacobsson R, Jaeger A, Jans E, Jansen F, Jaton P, Jing F, John M, Johnson D, Jones CR, Jost B, Kaballo M, Kandybei S, Karacson M, Karbach TM, Kenyon IR, Kerzel U, Ketel T, Keune A, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leroy O, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, von Loeben J, Lopes JH, Lopez Asamar E, Lopez-March N, Lu H, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Mangiafave N, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martin L, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Matveev M, Maurice E, Mazurov A, McCarthy J, McNulty R, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nisar S, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Pal BK, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perego DL, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pessina G, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pugatch V, Puig Navarro A, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reid MM, Dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Rodrigues E, Rodriguez Perez P, Rogers GJ, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruiz H, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salzmann C, Sanmartin Sedes B, Sannino M, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schindler H, Schleich S, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Skwarnicki T, Smith NA, Smith E, Smith M, Sobczak K, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Urner D, Uwer U, Vagnoni V, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wishahi J, Witek M, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing F, Xing Z, Yang Z, Young R, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhong L, Zvyagin A. Measurement of the Λ(b)(0), Ξ (b)(-), and Ω(b((-) Baryon masses. PHYSICAL REVIEW LETTERS 2013; 110:182001. [PMID: 23683191 DOI: 10.1103/physrevlett.110.182001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Indexed: 06/02/2023]
Abstract
Bottom baryons decaying to a J/ψ meson and a hyperon are reconstructed using 1.0 fb(-1) of data collected in 2011 with the LHCb detector. Significant Λ(b)(0) → J/ψΛ, Ξ(b((-) → J/ψΞ(-) and Ω(b)(-) → J/ψΩ(-) signals are observed and the corresponding masses are measured to be M(Λ(b)(0))=5619.53 ± 0.13(stat.) ± 0.45(syst.) MeV/c(2), M(Ξ(b)(-)) = 5795.8 ± 0.9(stat.) ± 0.4(syst.) MeV/c(2), M(Ω(b)(-)) = 6046.0 ± 2.2(stat.) ± 0.5(syst.) MeV/c(2) , while the differences with respect to the Λ(b)(0) mass are M(Ξ(b)(-))-M(Λ(b)(0))=176.2 ± 0.9(stat.) ± 0.1(syst.) MeV/c(2), M(Ω(b)(-))-M(Λ(b)(0))=426.4 ± 2.2(stat.) ± 0.4(syst.) MeV/c(2). These are the most precise mass measurements of the Λ(b)(0), Ξ(b)(-) and Ω(b)(-) baryons to date. Averaging the above Λ(b)(0) mass measurement with that published by LHCb using 35 pb(-1) of data collected in 2010 yields M(Λ(b)(0)) = 5619.44 ± 0.13(stat.)± 0.38(syst.) MeV/c(2).
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First observation of the decay Bs2*(5840)(0)→B*+ K- and studies of excited Bs(0) mesons. PHYSICAL REVIEW LETTERS 2013; 110:151803. [PMID: 25167250 DOI: 10.1103/physrevlett.110.151803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 02/11/2013] [Indexed: 06/03/2023]
Abstract
The properties of the orbitally excited (L=1) Bs(0) states are studied by using 1.0 fb(-1) of pp collisions at sqrt[s]=7 TeV collected with the LHCb detector. The first observation of the Bs2*(5840)(0) meson decaying to B*+ K- is reported, and the corresponding branching fraction measured relative to the B+ K- decay mode. The Bs1(5830)(0)→B*+ K- decay is observed as well. The width of the Bs2*(5840)(0) state is measured for the first time, and the masses of the two states are determined with the highest precision to date. The observation of the Bs2*(5840)(0)→B*+ K- decay favors the spin-parity assignment J(P)=2+ for the Bs2*(5840)(0) meson. In addition, the most precise measurement of the mass difference m(B*+)-m(B+)=45.01±0.30(stat)±0.23(syst) MeV/c(2) is obtained.
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