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Aaij R, Beteta CA, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Bressieux J, Brett D, Britsch M, Britton T, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Cogoni V, Cojocariu L, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Elena E, Elsasser C, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay RF, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fol P, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gavrilov G, Geraci A, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gianì S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gotti C, 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, 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, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Mapelli A, Maratas J, Marchand J, Marconi U, Marin Benito C, Marino P, Märki R, Marks J, Martellotti G, Martens A, Sánchez AM, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O’Hanlon DP, 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 LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Alvarez AP, Pearce A, Pellegrino A, Pepe Altarelli M, Perazzini S, Trigo EP, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, 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, Price E, Price J, 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, Redi F, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards S, Rihl M, Rinnert K, Rives Molina V, Robbe P, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruiz H, Ruiz Valls P, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders D, 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, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, 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, De Paula BS, Spaan B, Sparkes A, Spradlin P, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T’Jampens S, Teklishyn M, Tellarini G, 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, Vacca C, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht J, Wiedner D, Wilkinson G, Williams MP, Williams M, Wilschut H, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wyllie K, Xie Y, Xing Z, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of the [Formula: see text] production cross-section in proton-proton collisions via the decay [Formula: see text]. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2015; 75:311. [PMID: 26190939 PMCID: PMC4498677 DOI: 10.1140/epjc/s10052-015-3502-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 06/04/2015] [Indexed: 06/04/2023]
Abstract
The production of the [Formula: see text] state in proton-proton collisions is probed via its decay to the [Formula: see text] final state with the LHCb detector, in the rapidity range [Formula: see text] and in the meson transverse-momentum range [Formula: see text]. The cross-section for prompt production of [Formula: see text] mesons relative to the prompt [Formula: see text] cross-section is measured, for the first time, to be [Formula: see text] at a centre-of-mass energy [Formula: see text] using data corresponding to an integrated luminosity of 0.7 fb[Formula: see text], and [Formula: see text] at [Formula: see text] using 2.0 fb[Formula: see text]. The uncertainties quoted are, in order, statistical, systematic, and that on the ratio of branching fractions of the [Formula: see text] and [Formula: see text] decays to the [Formula: see text] final state. In addition, the inclusive branching fraction of [Formula: see text]-hadron decays into [Formula: see text] mesons is measured, for the first time, to be [Formula: see text], where the third uncertainty includes also the uncertainty on the [Formula: see text] inclusive branching fraction from [Formula: see text]-hadron decays. The difference between the [Formula: see text] and [Formula: see text] meson masses is determined to be [Formula: see text].
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Lees JP, Poireau V, Tisserand V, Grauges E, Palano A, Eigen G, Stugu B, Brown DN, Kerth LT, Kolomensky YG, Lee MJ, Lynch G, Koch H, Schroeder T, Hearty C, Mattison TS, McKenna JA, So RY, Khan A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Kravchenko EA, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Lankford AJ, Dey B, Gary JW, Long O, Campagnari C, Franco Sevilla M, Hong TM, Kovalskyi D, Richman JD, West CA, Eisner AM, Lockman WS, Panduro Vazquez W, Schumm BA, Seiden A, Chao DS, Cheng CH, Echenard B, Flood KT, Hitlin DG, Miyashita TS, Ongmongkolkul P, Porter FC, Röhrken M, Andreassen R, Huard Z, Meadows BT, Pushpawela BG, Sokoloff MD, Sun L, Bloom PC, Ford WT, Gaz A, Smith JG, Wagner SR, Ayad R, Toki WH, Spaan B, Bernard D, Verderi M, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Piemontese L, Santoro V, Calcaterra A, de Sangro R, Finocchiaro G, Martellotti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Adametz A, Uwer U, Lacker HM, Mallik U, Chen C, Cochran J, Prell S, Ahmed H, Gritsan AV, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Roudeau P, Stocchi A, Wormser G, Lange DJ, Wright DM, Coleman JP, Fry JR, Gabathuler E, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Cowan G, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Griessinger K, Hafner A, Schubert KR, Barlow RJ, Lafferty GD, Cenci R, Hamilton B, Jawahery A, Roberts DA, Cowan R, Sciolla G, Cheaib R, Patel PM, Robertson SH, Neri N, Palombo F, Cremaldi L, Godang R, Sonnek P, Summers DJ, Simard M, Taras P, De Nardo G, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop CP, LoSecco JM, Honscheid K, Kass R, Feltresi E, Margoni M, Morandin M, Posocco M, Rotondo M, Simi G, Simonetto F, Stroili R, Akar S, Ben-Haim E, Bomben M, Bonneaud GR, Briand H, Calderini G, Chauveau J, Leruste P, Marchiori G, Ocariz J, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Chrzaszcz M, Forti F, Giorgi MA, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh JJ, Lopes Pegna D, Olsen J, Smith AJS, Anulli F, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Pilloni A, Piredda G, Bünger C, Dittrich S, Grünberg O, Hess M, Leddig T, Voß C, Waldi R, Adye T, Olaiya EO, Wilson FF, Emery S, Vasseur G, Aston D, Bard DJ, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Ebert M, Field RC, Fulsom BG, Graham MT, Hast C, Innes WR, Kim P, Leith DWGS, Lindemann D, Luitz S, Luth V, Lynch HL, MacFarlane DB, Muller DR, Neal H, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Snyder A, Su D, Sullivan MK, Va'vra J, Wisniewski WJ, Wulsin HW, Purohit MV, White RM, Wilson JR, Randle-Conde A, Sekula SJ, Bellis M, Burchat PR, Puccio EMT, Alam MS, Ernst JA, Gorodeisky R, Guttman N, Peimer DR, Soffer A, Spanier SM, Ritchie JL, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, De Mori F, Filippi A, Gamba D, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Villanueva-Perez P, Albert J, Banerjee S, Beaulieu A, Bernlochner FU, Choi HHF, King GJ, Kowalewski R, Lewczuk MJ, Lueck T, Nugent IM, Roney JM, Sobie RJ, Tasneem N, Gershon TJ, Harrison PF, Latham TE, Band HR, Dasu S, Pan Y, Prepost R, Wu SL. Search for Long-Lived Particles in e+ e- Collisions. PHYSICAL REVIEW LETTERS 2015; 114:171801. [PMID: 25978225 DOI: 10.1103/physrevlett.114.171801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Indexed: 06/04/2023]
Abstract
We present a search for a neutral, long-lived particle L that is produced in e+ e- collisions and decays at a significant distance from the e+ e- interaction point into various flavor combinations of two oppositely charged tracks. The analysis uses an e+ e- data sample with a luminosity of 489.1 fb(-1) collected by the BABAR detector at the ϒ(4S), ϒ(3S), and ϒ(2S) resonances and just below the ϒ(4S). Fitting the two-track mass distribution in search of a signal peak, we do not observe a significant signal, and set 90% confidence level upper limits on the product of the L production cross section, branching fraction, and reconstruction efficiency for six possible two-body L decay modes as a function of the L mass. The efficiency is given for each final state as a function of the mass, lifetime, and transverse momentum of the candidate, allowing application of the upper limits to any production model. In addition, upper limits are provided on the branching fraction B(B→XsL), where Xs is a strange hadronic system.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Bertolin A, 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, Brett D, Britsch M, Britton T, Brodzicka J, Brook NH, Bursche A, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Capriotti L, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casanova Mohr RCM, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Cogoni V, Cojocariu L, Collazuol G, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, Counts I, Couturier B, Cowan GA, Craik DC, Crocombe A, Cruz Torres M, Cunliffe S, Currie R, D’Ambrosio C, Dalseno J, David P, David PNY, Davis A, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Dean CT, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Dey B, Di Canto A, Di Domenico A, Dijkstra H, Donleavy S, Dordei F, Dorigo M, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fol P, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gascon D, Gaspar C, Gastaldi U, Gauld R, Gavardi L, Gazzoni G, Geraci A, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gianì S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graverini 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Hussain N, Hutchcroft D, Hynds D, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jalocha J, Jans E, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Jurik N, Kandybei S, Kanso W, Karacson M, Karbach TM, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanfranchi G, Langenbruch C, Langhans B, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leroy O, Lesiak T, Leverington B, Li Y, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lowdon P, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Mapelli A, Maratas J, Marchand J, Marconi U, Marin Benito C, Marino P, Märki R, Marks J, Martellotti G, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O’Hanlon DP, Oblakowska-Mucha A, Obraztsov V, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater CJG, Orlandea M, Osorio Rodrigues B, Otalora Goicochea JM, Otto A, Owen P, Oyanguren A, Pal BK, Palano A, Palombo F, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perret P, Pescatore L, Pesen E, Petridis K, Petrolini A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Pistone A, Playfer S, Plo Casasus M, Polci F, Poluektov A, Polyakov I, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Price E, Price J, 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, Redi F, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards S, Rihl M, Rinnert K, Rives Molina V, Robbe P, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruiz H, Ruiz Valls P, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders D, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Semennikov A, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skillicorn I, Skwarnicki T, Smith NA, Smith E, Smith E, Smith J, Smith M, Snoek H, Sokoloff MD, Soler FJP, Soomro F, Souza D, De Paula BS, Spaan B, Spradlin P, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Sterpka F, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T’Jampens S, Teklishyn M, Tellarini G, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Todd J, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Trisovic A, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vacca C, 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, Viana Barbosa JVVB, Viaud B, Vieira D, Vieites Diaz M, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, de Vries JA, Waldi R, Wallace C, Wallace R, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wiedner D, Wilkinson G, Wilkinson M, Williams MP, Williams M, Wilschut H, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wyllie K, Xie Y, Xing Z, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L. Search for long-lived particles decaying to jet pairs. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2015; 75:152. [PMID: 25983649 PMCID: PMC4423877 DOI: 10.1140/epjc/s10052-015-3344-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 03/02/2015] [Indexed: 06/04/2023]
Abstract
A search is presented for long-lived particles with a mass between 25 and 50 [Formula: see text] and a lifetime between 1 and 200[Formula: see text] in a sample of proton-proton collisions at a centre-of-mass energy of [Formula: see text] TeV, corresponding to an integrated luminosity of 0.62 [Formula: see text], collected by the LHCb detector. The particles are assumed to be pair-produced by the decay of a standard model-like Higgs boson. The experimental signature of the long-lived particle is a displaced vertex with two associated jets. No excess above the background is observed and limits are set on the production cross-section as a function of the long-lived particle mass and lifetime.
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Lees J, Poireau V, Tisserand V, Grauges E, Palano A, Eigen G, Stugu B, Brown D, Kerth L, Kolomensky Y, Lee M, Lynch G, Koch H, Schroeder T, Hearty C, Mattison T, McKenna J, So R, Khan A, Blinov V, Buzykaev A, Druzhinin V, Golubev V, Kravchenko E, Onuchin A, Serednyakov S, Skovpen Y, Solodov E, Todyshev K, Lankford A, Dey B, Gary J, Long O, Franco Sevilla M, Hong T, Kovalskyi D, Richman J, West C, Eisner A, Lockman W, Panduro Vazquez W, Schumm B, Seiden A, Chao D, Cheng C, Echenard B, Flood K, Hitlin D, Miyashita T, Ongmongkolkul P, Porter F, Röhrken M, Andreassen R, Huard Z, Meadows B, Pushpawela B, Sokoloff M, Sun L, Bloom P, Ford W, Gaz A, Smith J, Wagner S, Ayad R, Toki W, Spaan B, Bernard D, Verderi M, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Piemontese L, Santoro V, Calcaterra A, de Sangro R, Finocchiaro G, Martellotti S, Patteri P, Peruzzi I, Piccolo M, Rama M, Zallo A, Contri R, Monge M, Passaggio S, Patrignani C, Bhuyan B, Prasad V, Adametz A, Uwer U, Lacker H, Mallik U, Chen C, Cochran J, Prell S, Ahmed H, Gritsan A, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz A, Malaescu B, Roudeau P, Stocchi A, Wormser G, Lange D, Wright D, Coleman J, Fry J, Gabathuler E, Hutchcroft D, Payne D, Touramanis C, Bevan A, Di Lodovico F, Sacco R, Cowan G, Brown D, Davis C, Denig A, Fritsch M, Gradl W, Griessinger K, Hafner A, Schubert K, Barlow R, Lafferty G, Cenci R, Hamilton B, Jawahery A, Roberts D, Cowan R, Cheaib R, Patel P, Robertson S, Neri N, Palombo F, Cremaldi L, Godang R, Summers D, Simard M, Taras P, De Nardo G, Onorato G, Sciacca C, Raven G, Jessop C, LoSecco J, Honscheid K, Kass R, Margoni M, Morandin M, Posocco M, Rotondo M, Simi G, Simonetto F, Stroili R, Akar S, Ben-Haim E, Bomben M, Bonneaud G, Briand H, Calderini G, Chauveau J, Leruste P, Marchiori G, Ocariz J, Biasini M, Manoni E, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Chrzaszcz M, Forti F, Giorgi M, Lusiani A, Oberhof B, Paoloni E, Rizzo G, Walsh J, Lopes Pegna D, Olsen J, Smith A, Anulli F, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Pilloni A, Piredda G, Bünger C, Dittrich S, Grünberg O, Hess M, Leddig T, Voß C, Waldi R, Adye T, Olaiya E, Wilson F, Emery S, Vasseur G, Aston D, Bard D, Cartaro C, Convery M, Dorfan J, Dubois-Felsmann G, Dunwoodie W, Ebert M, Field R, Fulsom B, Graham M, Hast C, Innes W, Kim P, Leith D, Lindemann D, Luitz S, Luth V, Lynch H, MacFarlane D, Muller D, Neal H, Perl M, Pulliam T, Ratcliff B, Roodman A, Schindler R, Snyder A, Su D, Sullivan M, Va’vra J, Wisniewski W, Wulsin H, Purohit M, Wilson J, Randle-Conde A, Sekula S, Bellis M, Burchat P, Puccio E, Alam M, Ernst J, Gorodeisky R, Guttman N, Peimer D, Soffer A, Spanier S, Ritchie J, Schwitters R, Izen J, Lou X, Bianchi F, De Mori F, Filippi A, Gamba D, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Villanueva-Perez P, Albert J, Banerjee S, Beaulieu A, Bernlochner F, Choi H, King G, Kowalewski R, Lewczuk M, Lueck T, Nugent I, Roney J, Sobie R, Tasneem N, Gershon T, Harrison P, Latham T, Band H, Dasu S, Pan Y, Prepost R, Wu S. Search for a light Higgs resonance in radiative decays of the ϒ(1S)with a charm tag. Int J Clin Exp Med 2015. [DOI: 10.1103/physrevd.91.071102] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Brett D, Britsch M, Britton T, Brodzicka J, Brook NH, Brown H, Bursche A, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Capriotti L, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Cogoni V, Cojocariu L, Collazuol G, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, Counts I, Couturier B, Cowan GA, Craik DC, Crocombe AC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, Dalseno J, David P, David PNY, Davis A, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Dean CT, 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fol P, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gascon D, Gaspar C, Gauld R, Gavardi L, Gazzoni G, Geraci A, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gianì S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graverini 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Jurik N, Kandybei S, Kanso W, Karacson M, Karbach TM, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Mapelli A, Maratas J, Marchand JF, Marconi U, Marin Benito C, Marino P, Märki R, Marks J, Martellotti G, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater CJG, Orlandea M, Otalora Goicochea JM, Otto A, Owen P, Oyanguren A, Pal BK, Palano A, Palombo F, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Petridis K, Petrolini A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Pistone A, Playfer S, Plo Casasus M, Polci F, Poluektov A, Polyakov I, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Price E, Price JD, 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, Redi F, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards S, Rihl M, Rinnert K, Rives Molina V, Robbe P, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruiz H, Ruiz Valls P, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Semennikov A, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skillicorn I, 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, Spradlin P, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Todd J, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Trisovic A, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vacca C, 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, Vieites Diaz M, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, de Vries JA, Waldi R, Wallace C, Wallace R, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht J, Wiedner D, Wilkinson G, Williams MP, Williams M, Wilschut HW, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wyllie K, Xie Y, Xing Z, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L. Measurement of Bc+ Production in Proton-Proton Collisions at √[s]=8 TeV. PHYSICAL REVIEW LETTERS 2015; 114:132001. [PMID: 25884121 DOI: 10.1103/physrevlett.114.132001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Indexed: 06/04/2023]
Abstract
Production of Bc+ mesons in proton-proton collisions at a center-of-mass energy of 8 TeV is studied with data corresponding to an integrated luminosity of 2.0 fb-1 recorded by the LHCb experiment. The ratio of production cross sections times branching fractions between the Bc+→J/ψπ+ and B+→J/ψK+ decays is measured as a function of transverse momentum and rapidity in the regions 0<pT<20 GeV/c and 2.0<y<4.5. The ratio in this kinematic range is measured to be (0.683±0.018±0.009)%, where the first uncertainty is statistical and the second systematic.
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Lees JP, Poireau V, Tisserand V, Grauges E, Palano A, Eigen G, Stugu B, Brown DN, Kerth LT, Kolomensky YG, Lee MJ, Lynch G, Koch H, Schroeder T, Hearty C, Mattison TS, McKenna JA, So RY, Khan A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Kravchenko EA, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Lankford AJ, Mandelkern M, Dey B, Gary JW, Long O, Campagnari C, Franco Sevilla M, Hong TM, Kovalskyi D, Richman JD, West CA, Eisner AM, Lockman WS, Panduro Vazquez W, Schumm BA, Seiden A, Chao DS, Cheng CH, Echenard B, Flood KT, Hitlin DG, Miyashita TS, Ongmongkolkul P, Porter FC, Röhrken M, Andreassen R, Huard Z, Meadows BT, Pushpawela BG, Sokoloff MD, Sun L, Bloom PC, Ford WT, Gaz A, Smith JG, Wagner SR, Ayad R, Toki WH, Spaan B, Bernard D, Verderi M, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Piemontese L, Santoro V, Calcaterra A, de Sangro R, Finocchiaro G, Martellotti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Adametz A, Uwer U, Lacker HM, Dauncey PD, Mallik U, Chen C, Cochran J, Prell S, Ahmed H, Gritsan AV, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Roudeau P, Stocchi A, Wormser G, Lange DJ, Wright DM, Coleman JP, Fry JR, Gabathuler E, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Cowan G, Bougher J, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Griessinger K, Hafner A, Schubert KR, Barlow RJ, Lafferty GD, Cenci R, Hamilton B, Jawahery A, Roberts DA, Cowan R, Sciolla G, Cheaib R, Patel PM, Robertson SH, Neri N, Palombo F, Cremaldi L, Godang R, Sonnek P, Summers DJ, Simard M, Taras P, De Nardo G, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop CP, LoSecco JM, Honscheid K, Kass R, Feltresi E, Margoni M, Morandin M, Posocco M, Rotondo M, Simi G, Simonetto F, Stroili R, Akar S, Ben-Haim E, Bomben M, Bonneaud GR, Briand H, Calderini G, Chauveau J, Leruste P, Marchiori G, Ocariz J, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Chrzaszcz M, Forti F, Giorgi MA, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh JJ, Lopes Pegna D, Olsen J, Smith AJS, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Pilloni A, Piredda G, Bünger C, Dittrich S, Grünberg O, Hess M, Leddig T, Voß C, Waldi R, Adye T, Olaiya EO, Wilson FF, Emery S, Vasseur G, Anulli F, Aston D, Bard DJ, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Ebert M, Field RC, Fulsom BG, Graham MT, Hast C, Innes WR, Kim P, Leith DWGS, Lewis P, Lindemann D, Luitz S, Luth V, Lynch HL, MacFarlane DB, Muller DR, Neal H, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Snyder A, Su D, Sullivan MK, Va'vra J, Wisniewski WJ, Wulsin HW, Purohit MV, White RM, Wilson JR, Randle-Conde A, Sekula SJ, Bellis M, Burchat PR, Puccio EMT, Alam MS, Ernst JA, Gorodeisky R, Guttman N, Peimer DR, Soffer A, Spanier SM, Ritchie JL, Ruland AM, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, De Mori F, Filippi A, Gamba D, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Villanueva-Perez P, Albert J, Banerjee S, Beaulieu A, Bernlochner FU, Choi HHF, King GJ, Kowalewski R, Lewczuk MJ, Lueck T, Nugent IM, Roney JM, Sobie RJ, Tasneem N, Gershon TJ, Harrison PF, Latham TE, Band HR, Dasu S, Pan Y, Prepost R, Wu SL. Study of CP asymmetry in B^{0}-B[over ¯]^{0} mixing with inclusive dilepton events. PHYSICAL REVIEW LETTERS 2015; 114:081801. [PMID: 25768754 DOI: 10.1103/physrevlett.114.081801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Indexed: 06/04/2023]
Abstract
We present a measurement of the asymmetry A_{CP} between same-sign inclusive dilepton samples ℓ^{+}ℓ^{+} and ℓ^{-}ℓ^{-} (ℓ=e, μ) from semileptonic B decays in ϒ(4S)→BB[over ¯] events, using the complete data set recorded by the BABAR experiment near the ϒ(4S) resonance, corresponding to 471×10^{6} BB[over ¯] pairs. The asymmetry A_{CP} allows comparison between the mixing probabilities P(B[over ¯]^{0}→B^{0}) and P(B^{0}→B[over ¯]^{0}), and therefore probes CP and T violation. The result, A_{CP}=[-3.9±3.5(stat)±1.9(syst)]×10^{-3}, is consistent with the standard model expectation.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Bertolin A, 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, Brett D, Britsch M, Britton T, Brodzicka J, Brook NH, Bursche A, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Capriotti L, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casanova Mohr RCM, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Cogoni V, Cojocariu L, Collazuol G, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, Counts I, Couturier B, Cowan GA, Craik DC, Crocombe AC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, Dalseno J, David P, David PNY, Davis A, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Dean CT, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Dey B, Di Canto A, Di Domenico A, Dijkstra H, Donleavy S, Dordei F, Dorigo M, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fol P, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gascon D, Gaspar C, Gastaldi U, Gauld R, Gavardi L, Gazzoni G, Geraci A, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gianì S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graverini 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Hussain N, Hutchcroft D, Hynds D, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jalocha J, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Jurik N, Kandybei S, Kanso W, Karacson M, Karbach TM, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanfranchi G, Langenbruch C, Langhans B, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leroy O, Lesiak T, Leverington B, Li Y, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lowdon P, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Mapelli A, Maratas J, Marchand JF, Marconi U, Marin Benito C, Marino P, Märki R, Marks J, Martellotti G, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, Oblakowska-Mucha A, Obraztsov V, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater CJG, Orlandea M, Otalora Goicochea JM, Otto A, Owen P, Oyanguren A, Pal BK, Palano A, Palombo F, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perret P, Pescatore L, Pesen E, Petridis K, Petrolini A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Pistone A, Playfer S, Plo Casasus M, Polci F, Poluektov A, Polyakov I, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Price E, Price JD, 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, Redi F, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards S, Rihl M, Rinnert K, Rives Molina V, Robbe P, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruiz H, Ruiz Valls P, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Semennikov A, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skillicorn I, 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, Spradlin P, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Sterpka F, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Todd J, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Trisovic A, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vacca C, 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, Viana Barbosa JVVB, Viaud B, Vieira D, Vieites Diaz M, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voss C, de Vries JA, Waldi R, Wallace C, Wallace R, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wiedner D, Wilkinson G, Wilkinson M, Williams MP, Williams M, Wilschut HW, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wyllie K, Xie Y, Xing Z, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L. Observation of two new Ξ(b)(-) baryon resonances. PHYSICAL REVIEW LETTERS 2015; 114:062004. [PMID: 25723210 DOI: 10.1103/physrevlett.114.062004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Indexed: 06/04/2023]
Abstract
Two structures are observed close to the kinematic threshold in the Ξ(b)(0)π(-) mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb(-1), recorded by the LHCb experiment. In the quark model, two baryonic resonances with quark content bds are expected in this mass region: the spin-parity J(P)=(1/2)(+) and J(P)=(3/2)(+) states, denoted Ξ(b)('-) and Ξ(b)(*-). Interpreting the structures as these resonances, we measure the mass differences and the width of the heavier state to be m(Ξ(b)('-))-m(Ξ(b)(0))-m(π(-))=3.653±0.018±0.006 MeV/c(2), m(Ξ(b)(*-))-m(Ξ(b)(0))-m(π(-))=23.96±0.12±0.06 MeV/c(2), Γ(Ξ(b)(*-))=1.65±0.31±0.10 MeV, where the first and second uncertainties are statistical and systematic, respectively. The width of the lighter state is consistent with zero, and we place an upper limit of Γ(Ξ(b)('-))<0.08 MeV at 95% confidence level. Relative production rates of these states are also reported.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Bertolin A, 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, Brett D, Britsch M, Britton T, Brodzicka J, Brook NH, Bursche A, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casanova Mohr RCM, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Cogoni V, Cojocariu L, Collazuol G, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, Counts I, Couturier B, Cowan GA, Craik DC, Crocombe AC, Cruz Torres M, Cunliffe S, Currie R, D'Ambrosio C, Dalseno J, David P, David PNY, Davis A, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Dean CT, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Di Domenico A, Dijkstra H, Donleavy S, Dordei F, Dorigo M, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fol P, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gascon D, Gaspar C, Gastaldi U, Gauld R, Gavardi L, Gazzoni G, Geraci A, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gianì S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graverini 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Hussain N, Hutchcroft D, Hynds D, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jalocha J, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Jurik N, Kandybei S, Kanso W, Karacson M, Karbach TM, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanfranchi G, Langenbruch C, Langhans B, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leroy O, Lesiak T, Leverington B, Li Y, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lowdon P, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Mapelli A, Maratas J, Marchand JF, Marconi U, Marin Benito C, Marino P, Märki R, Marks J, Martellotti G, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, Oblakowska-Mucha A, Obraztsov V, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater CJG, Orlandea M, Otalora Goicochea JM, Otto A, Owen P, Oyanguren A, Pal BK, Palano A, Palombo F, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perret P, Pescatore L, Pesen E, Petridis K, Petrolini A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Pistone A, Playfer S, Plo Casasus M, Polci F, Poluektov A, Polyakov I, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Price E, Price JD, 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, Redi F, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards S, Rihl M, Rinnert K, Rives Molina V, Robbe P, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruiz H, Ruiz Valls P, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Semennikov A, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skillicorn I, 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, Spradlin P, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Sterpka F, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Todd J, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Trisovic A, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vacca C, 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, Viana Barbosa JVVB, Viaud B, Vieira D, Vieites Diaz M, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, de Vries JA, Waldi R, Wallace C, Wallace R, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wiedner D, Wilkinson G, Wilkinson M, Williams MP, Williams M, Wilschut HW, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wyllie K, Xie Y, Xing Z, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L. Precision measurement of CP violation in B(S)(0)→J/ΨK+K- decays. PHYSICAL REVIEW LETTERS 2015; 114:041801. [PMID: 25679885 DOI: 10.1103/physrevlett.114.041801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Indexed: 06/04/2023]
Abstract
The time-dependent CP asymmetry in B(s)(0)→J/ψK+K- decays is measured using pp collision data, corresponding to an integrated luminosity of 3.0 fb-1, collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. In a sample of 96,000 B(s)(0)→J/ψK+K- decays, the CP-violating phase ϕs is measured, as well as the decay widths ΓL and ΓH of the light and heavy mass eigenstates of the B(s)(0)-B[over ¯]s0 system. The values obtained are ϕs=-0.058±0.049±0.006 rad, Γs≡(ΓL+ΓH)/2=0.6603±0.0027±0.0015 ps-1, and ΔΓs≡ΓL-ΓH=0.0805±0.0091±0.0032 ps-1, where the first uncertainty is statistical and the second, systematic. These are the most precise single measurements of those quantities to date. A combined analysis with Bs0→J/ψπ+π- decays gives ϕs=-0.010±0.039 rad. All measurements are in agreement with the standard model predictions. For the first time, the phase ϕs is measured independently for each polarization state of the K+K- system and shows no evidence for polarization dependence.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Brett D, Britsch M, Britton T, Brodzicka J, Brook NH, Brown H, Bursche A, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Cogoni V, Cojocariu L, Collazuol G, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Dean CT, 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay RF, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fol P, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gascon D, Gaspar C, Gauld R, Gavardi L, Geraci A, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gianì S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graverini 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Jurik N, Kandybei S, Kanso W, Karacson M, Karbach TM, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Mapelli A, Maratas J, Marchand JF, Marconi U, Marin Benito C, Marino P, Märki R, Marks J, Martellotti G, Martín Sánchez A, Martinelli M, Martinez Santos D, Martinez Vidal F, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurin B, Mazurov A, McCann M, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater CJG, Orlandea M, Otalora Goicochea JM, Otto A, Owen P, Oyanguren A, Pal BK, Palano A, Palombo F, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Pearce A, Pellegrino A, Pepe Altarelli M, Perazzini S, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, 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, Price E, Price JD, 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, Redi F, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards S, Rihl M, Rinnert K, Rives Molina V, Robbe P, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruiz H, Ruiz Valls P, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schubiger M, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Semennikov A, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skillicorn I, 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, Spradlin P, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Todd J, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Trisovic A, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vacca C, 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, Vieites Diaz M, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, de Vries JA, Waldi R, Wallace C, Wallace R, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht J, Wiedner D, Wilkinson G, Wilkinson M, Williams MP, Williams M, Wilschut HW, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wyllie K, Xie Y, Xing Z, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L. Measurement of the semileptonic CP asymmetry in B0-B[over ¯]0 mixing. PHYSICAL REVIEW LETTERS 2015; 114:041601. [PMID: 25679884 DOI: 10.1103/physrevlett.114.041601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Indexed: 06/04/2023]
Abstract
The semileptonic CP asymmetry in B0-B[over ¯]0 mixing, a(sl)(d), is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb-1, recorded by the LHCb experiment. Semileptonic B0 decays are reconstructed in the inclusive final states D-μ+ and D*-μ+, where the D- meson decays into the K+π-π- final state and the D*- meson into the D[over ¯]0(→K+π-)π- final state. The asymmetry between the numbers of D(*)-μ+ and D(*)+μ- decays is measured as a function of the decay time of the B0 mesons. The CP asymmetry is measured to be a(sl)(d)=(-0.02±0.19±0.30)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of a(sl)(d) to date and is consistent with the prediction from the standard model.
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Lees J, Poireau V, Tisserand V, Grauges E, Palano A, Eigen G, Stugu B, Brown D, Kerth L, Kolomensky Y, Lee M, Lynch G, Koch H, Schroeder T, Hearty C, Mattison T, McKenna J, So R, Khan A, Blinov V, Buzykaev A, Druzhinin V, Golubev V, Kravchenko E, Onuchin A, Serednyakov S, Skovpen Y, Solodov E, Todyshev K, Lankford A, Dey B, Gary J, Long O, Campagnari C, Franco Sevilla M, Hong T, Kovalskyi D, Richman J, West C, Eisner A, Lockman W, Panduro Vazquez W, Schumm B, Seiden A, Chao D, Cheng C, Echenard B, Flood K, Hitlin D, Miyashita T, Ongmongkolkul P, Porter F, Röhrken M, Andreassen R, Huard Z, Meadows B, Pushpawela B, Sokoloff M, Sun L, Bloom P, Ford W, Gaz A, Smith J, Wagner S, Ayad R, Toki W, Spaan B, Bernard D, Verderi M, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Piemontese L, Santoro V, Calcaterra A, de Sangro R, Finocchiaro G, Martellotti S, Patteri P, Peruzzi I, Piccolo M, Rama M, Zallo A, Contri R, Lo Vetere M, Monge M, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Adametz A, Uwer U, Lacker H, Mallik U, Chen C, Cochran J, Prell S, Ahmed H, Gritsan A, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz A, Malaescu B, Roudeau P, Stocchi A, Wormser G, Lange D, Wright D, Coleman J, Fry J, Gabathuler E, Hutchcroft D, Payne D, Touramanis C, Bevan A, Di Lodovico F, Sacco R, Cowan G, Brown D, Davis C, Denig A, Fritsch M, Gradl W, Griessinger K, Hafner A, Schubert K, Barlow R, Lafferty G, Cenci R, Hamilton B, Jawahery A, Roberts D, Cowan R, Sciolla G, Cheaib R, Patel P, Robertson S, Neri N, Palombo F, Cremaldi L, Godang R, Sonnek P, Summers D, Simard M, Taras P, De Nardo G, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop C, LoSecco J, Honscheid K, Kass R, Feltresi E, Margoni M, Morandin M, Posocco M, Rotondo M, Simi G, Simonetto F, Stroili R, Akar S, Ben-Haim E, Bomben M, Bonneaud G, Briand H, Calderini G, Chauveau J, Leruste P, Marchiori G, Ocariz J, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Chrzaszcz M, Forti F, Giorgi M, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh J, Lopes Pegna D, Olsen J, Smith A, Anulli F, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Pilloni A, Piredda G, Bünger C, Dittrich S, Grünberg O, Hess M, Leddig T, Voß C, Waldi R, Adye T, Olaiya E, Wilson F, Emery S, Vasseur G, Aston D, Bard D, Cartaro C, Convery M, Dorfan J, Dubois-Felsmann G, Dunwoodie W, Ebert M, Field R, Fulsom B, Graham M, Hast C, Innes W, Kim P, Leith D, Lindemann D, Luitz S, Luth V, Lynch H, MacFarlane D, Muller D, Neal H, Perl M, Pulliam T, Ratcliff B, Roodman A, Salnikov A, Schindler R, Snyder A, Su D, Sullivan M, Va’vra J, Wisniewski W, Wulsin H, Purohit M, White R, Wilson J, Randle-Conde A, Sekula S, Bellis M, Burchat P, Puccio E, Alam M, Ernst J, Gorodeisky R, Guttman N, Peimer D, Soffer A, Spanier S, Ritchie J, Schwitters R, Wray B, Izen J, Lou X, Bianchi F, De Mori F, Filippi A, Gamba D, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Villanueva-Perez P, Albert J, Banerjee S, Beaulieu A, Bernlochner F, Choi H, King G, Kowalewski R, Lewczuk M, Lueck T, Nugent I, Roney J, Sobie R, Tasneem N, Gershon T, Harrison P, Latham T, Band H, Dasu S, Pan Y, Prepost R, Wu S. Erratum: Measurement of the absolute branching fractions for Ds−→ℓ−ν¯ℓand extraction of the decay constant fDs[Phys. Rev. D 82, 091103(R) (2010)]. Int J Clin Exp Med 2015. [DOI: 10.1103/physrevd.91.019901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Lees J, Poireau V, Tisserand V, Grauges E, Palano A, Eigen G, Stugu B, Brown D, Kerth L, Kolomensky Y, Lee M, Lynch G, Koch H, Schroeder T, Hearty C, Mattison T, McKenna J, So R, Khan A, Blinov V, Buzykaev A, Druzhinin V, Golubev V, Kravchenko E, Onuchin A, Serednyakov S, Skovpen Y, Solodov E, Todyshev K, Lankford A, Mandelkern M, Dey B, Gary J, Long O, Campagnari C, Franco Sevilla M, Hong T, Kovalskyi D, Richman J, West C, Eisner A, Lockman W, Panduro Vazquez W, Schumm B, Seiden A, Chao D, Cheng C, Echenard B, Flood K, Hitlin D, Miyashita T, Ongmongkolkul P, Porter F, Röhrken M, Andreassen R, Huard Z, Meadows B, Pushpawela B, Sokoloff M, Sun L, Bloom P, Ford W, Gaz A, Smith J, Wagner S, Ayad R, Toki W, Spaan B, Bernard D, Verderi M, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Piemontese L, Santoro V, Calcaterra A, de Sangro R, Finocchiaro G, Martellotti S, Patteri P, Peruzzi I, Piccolo M, Rama M, Zallo A, Contri R, Lo Vetere M, Monge M, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Adametz A, Uwer U, Lacker H, Mallik U, Chen C, Cochran J, Prell S, Ahmed H, Gritsan A, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz A, Malaescu B, Roudeau P, Stocchi A, Wormser G, Lange D, Wright D, Coleman J, Fry J, Gabathuler E, Hutchcroft D, Payne D, Touramanis C, Bevan A, Di Lodovico F, Sacco R, Cowan G, Bougher J, Brown D, Davis C, Denig A, Fritsch M, Gradl W, Griessinger K, Hafner A, Schubert K, Barlow R, Lafferty G, Cenci R, Hamilton B, Jawahery A, Roberts D, Cowan R, Sciolla G, Cheaib R, Patel P, Robertson S, Neri N, Palombo F, Cremaldi L, Godang R, Sonnek P, Summers D, Simard M, Taras P, De Nardo G, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop C, LoSecco J, Honscheid K, Kass R, Feltresi E, Margoni M, Morandin M, Posocco M, Rotondo M, Simi G, Simonetto F, Stroili R, Akar S, Ben-Haim E, Bomben M, Bonneaud G, Briand H, Calderini G, Chauveau J, Leruste P, Marchiori G, Ocariz J, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Chrzaszcz M, Forti F, Giorgi M, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh J, Lopes Pegna D, Olsen J, Smith A, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Pilloni A, Piredda G, Bünger C, Dittrich S, Grünberg O, Hess M, Leddig T, Voß C, Waldi R, Adye T, Olaiya E, Wilson F, Emery S, Vasseur G, Anulli F, Aston D, Bard D, Cartaro C, Convery M, Dorfan J, Dubois-Felsmann G, Dunwoodie W, Ebert M, Field R, Fulsom B, Graham M, Hast C, Innes W, Kim P, Leith D, Lewis P, Lindemann D, Luitz S, Luth V, Lynch H, MacFarlane D, Muller D, Neal H, Perl M, Pulliam T, Ratcliff B, Roodman A, Salnikov A, Schindler R, Snyder A, Su D, Sullivan M, Va’vra J, Wisniewski W, Wulsin H, Purohit M, White R, Wilson J, Randle-Conde A, Sekula S, Bellis M, Burchat P, Puccio E, Alam M, Ernst J, Gorodeisky R, Guttman N, Peimer D, Soffer A, Spanier S, Ritchie J, Schwitters R, Wray B, Izen J, Lou X, Bianchi F, De Mori F, Filippi A, Gamba D, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Villanueva-Perez P, Albert J, Banerjee S, Beaulieu A, Bernlochner F, Choi H, King G, Kowalewski R, Lewczuk M, Lueck T, McKeen D, Nugent I, Pospelov M, Roney J, Sobie R, Tasneem N, Gershon T, Harrison P, Latham T, Band H, Dasu S, Pan Y, Prepost R, Wu S. Search for newπ0-like particles produced in association with aτ-lepton pair. Int J Clin Exp Med 2014. [DOI: 10.1103/physrevd.90.112011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Brett D, Britsch M, Britton T, Brodzicka J, Brook NH, Brown H, Bursche A, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Cogoni V, Cojocariu L, Collazuol G, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Dean CT, 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay RF, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fol P, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gascon D, Gaspar C, Gauld R, Gavardi L, Geraci A, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gianì S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graverini 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Jurik N, Kandybei S, Kanso W, Karacson M, Karbach TM, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Mapelli A, Maratas J, Marchand JF, Marconi U, Marin Benito C, Marino P, Märki R, Marks J, Martellotti G, Martín Sánchez A, Martinelli M, Martinez Santos D, Martinez Vidal F, Martins Tostes D, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurin B, Mazurov A, McCann M, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater CJG, Orlandea M, Otalora Goicochea JM, Otto A, Owen P, Oyanguren A, Pal BK, Palano A, Palombo F, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani C, Pearce A, Pellegrino A, Pepe Altarelli M, Perazzini S, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, 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, Price E, Price JD, 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, Redi F, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards S, Rihl M, Rinnert K, Rives Molina V, Robbe P, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruiz H, Ruiz Valls P, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schubiger M, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Semennikov A, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skillicorn I, 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, Spradlin P, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Todd J, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Trisovic A, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vacca C, 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, Vieites Diaz M, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, de Vries JA, Waldi R, Wallace C, Wallace R, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht J, Wiedner D, Wilkinson G, Williams MP, Williams M, Wilschut HW, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wyllie K, Xie Y, Xing Z, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L. Precision measurement of the mass and lifetime of the Ξb⁻ baryon. PHYSICAL REVIEW LETTERS 2014; 113:242002. [PMID: 25541768 DOI: 10.1103/physrevlett.113.242002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Indexed: 06/04/2023]
Abstract
We report on measurements of the mass and lifetime of the Ξ(b)⁻ baryon using about 1800 Ξ(b)⁻ decays reconstructed in a proton-proton collision data set corresponding to an integrated luminosity of 3.0 fb⁻¹ collected by the LHCb experiment. The decays are reconstructed in the Ξ(b)⁻→Ξ(c)⁰π⁻, Ξ(c)⁰→pK⁻K⁻π⁺ channel and the mass and lifetime are measured using the Λ(b)⁰→Λ(c)⁺π⁻ mode as a reference. We measure M(Ξ(b)⁻)-M(Λ(b)⁰)=178.36±0.46±0.16 MeV/c², (τ(Ξ(b)⁻)/τ(Λ(b)⁰)=1.089±0.026±0.011, where the uncertainties are statistical and systematic, respectively. These results lead to a factor of 2 better precision on the Ξ(b)⁻ mass and lifetime compared to previous best measurements, and are consistent with theoretical expectations.
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Aaij R, Abellán Beteta C, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Brett D, Britsch M, Britton T, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Cogoni V, Cojocariu L, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Elena E, Elsasser C, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay RF, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fol P, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gavrilov G, Geraci A, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gianì S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gotti C, 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, 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, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Mapelli A, Maratas J, Marchand JF, Marconi U, Marin Benito C, Marino P, Märki R, Marks J, Martellotti G, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Onderwater G, Orlandea M, Otalora Goicochea JM, Otto A, Owen P, Oyanguren A, Pal BK, Palano A, Palombo F, Palutan M, Panman J, Papanestis A, Pappagallo M, Pappalardo LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani 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, 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, Price E, Price JD, 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, Redi F, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards S, Rihl M, Rinnert K, Rives Molina V, Robbe P, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruiz H, Ruiz Valls P, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, 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, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko V, Shires A, Silva Coutinho R, Simi G, Sirendi M, Skidmore N, Skillicorn I, 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, Spradlin P, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Todd J, 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, Vacca C, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht J, Wiedner D, Wilkinson G, Williams MP, Williams M, Wilschut HW, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wyllie K, Xie Y, Xing Z, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L. Measurement of the CP-violating phase ϕs in Bs(0)→Ds(+)Ds(-) decays. PHYSICAL REVIEW LETTERS 2014; 113:211801. [PMID: 25479486 DOI: 10.1103/physrevlett.113.211801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Indexed: 06/04/2023]
Abstract
We present a measurement of the CP-violating weak mixing phase ϕs using the decay Bs(0)→Ds(+)Ds(-) in a data sample corresponding to 3.0 fb(-1) of integrated luminosity collected with the LHCb detector in pp collisions at center-of-mass energies of 7 and 8 TeV. An analysis of the time evolution of the system, which does not use the constraint |λ|=1 to allow for the presence of CP violation in decay, yields ϕs=0.02±0.17(stat)±0.02(syst) rad, |λ|=0.91(-0.15)(+0.18)(stat)±0.02(syst). This result is consistent with the standard model expectation.
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Lees JP, Poireau V, Tisserand V, Grauges E, Palano A, Eigen G, Stugu B, Brown DN, Feng M, Kerth LT, Kolomensky YG, Lee MJ, Lynch G, Koch H, Schroeder T, Hearty C, Mattison TS, McKenna JA, So RY, Khan A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Kravchenko EA, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Lankford AJ, Mandelkern M, Dey B, Gary JW, Long O, Campagnari C, Franco Sevilla M, Hong TM, Kovalskyi D, Richman JD, West CA, Eisner AM, Lockman WS, Panduro Vazquez W, Schumm BA, Seiden A, Chao DS, Cheng CH, Echenard B, Flood KT, Hitlin DG, Miyashita TS, Ongmongkolkul P, Porter FC, Andreassen R, Huard Z, Meadows BT, Pushpawela BG, Sokoloff MD, Sun L, Bloom PC, Ford WT, Gaz A, Smith JG, Wagner SR, Ayad R, Toki WH, Spaan B, Bernard D, Verderi M, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Piemontese L, Santoro V, Calcaterra A, de Sangro R, Finocchiaro G, Martellotti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Adametz A, Uwer U, Lacker HM, Dauncey PD, Mallik U, Chen C, Cochran J, Prell S, Ahmed H, Gritsan AV, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Roudeau P, Stocchi A, Wormser G, Lange DJ, Wright DM, Coleman JP, Fry JR, Gabathuler E, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Cowan G, Bougher J, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Griessinger K, Hafner A, Schubert KR, Barlow RJ, Lafferty GD, Cenci R, Hamilton B, Jawahery A, Roberts DA, Cowan R, Sciolla G, Cheaib R, Patel PM, Robertson SH, Neri N, Palombo F, Cremaldi L, Godang R, Sonnek P, Summers DJ, Simard M, Taras P, De Nardo G, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop CP, LoSecco JM, Honscheid K, Kass R, Feltresi E, Margoni M, Morandin M, Posocco M, Rotondo M, Simi G, Simonetto F, Stroili R, Akar S, Ben-Haim E, Bomben M, Bonneaud GR, Briand H, Calderini G, Chauveau J, Leruste P, Marchiori G, Ocariz J, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Chrzaszcz M, Forti F, Giorgi MA, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh JJ, Lopes Pegna D, Olsen J, Smith AJS, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Pilloni A, Piredda G, Bünger C, Dittrich S, Grünberg O, Hartmann T, Hess M, Leddig T, Voß C, Waldi R, Adye T, Olaiya EO, Wilson FF, Emery S, Vasseur G, Anulli F, Aston D, Bard DJ, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Ebert M, Field RC, Fulsom BG, Graham MT, Hast C, Innes WR, Kim P, Leith DWGS, Lewis P, Lindemann D, Luitz S, Luth V, Lynch HL, MacFarlane DB, Muller DR, Neal H, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Snyder A, Su D, Sullivan MK, Va'vra J, Wisniewski WJ, Wulsin HW, Purohit MV, White RM, Wilson JR, Randle-Conde A, Sekula SJ, Bellis M, Burchat PR, Puccio EMT, Alam MS, Ernst JA, Gorodeisky R, Guttman N, Peimer DR, Soffer A, Spanier SM, Ritchie JL, Ruland AM, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, De Mori F, Filippi A, Gamba D, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Villanueva-Perez P, Albert J, Banerjee S, Beaulieu A, Bernlochner FU, Choi HHF, King GJ, Kowalewski R, Lewczuk MJ, Lueck T, Nugent IM, Roney JM, Sobie RJ, Tasneem N, Gershon TJ, Harrison PF, Latham TE, Band HR, Dasu S, Pan Y, Prepost R, Wu SL. Search for a dark photon in e(+)e(-) collisions at BABAR. PHYSICAL REVIEW LETTERS 2014; 113:201801. [PMID: 25432035 DOI: 10.1103/physrevlett.113.201801] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Indexed: 06/04/2023]
Abstract
Dark sectors charged under a new Abelian interaction have recently received much attention in the context of dark matter models. These models introduce a light new mediator, the so-called dark photon (A^{'}), connecting the dark sector to the standard model. We present a search for a dark photon in the reaction e^{+}e^{-}→γA^{'}, A^{'}→e^{+}e^{-}, μ^{+}μ^{-} using 514 fb^{-1} of data collected with the BABAR detector. We observe no statistically significant deviations from the standard model predictions, and we set 90% confidence level upper limits on the mixing strength between the photon and dark photon at the level of 10^{-4}-10^{-3} for dark photon masses in the range 0.02-10.2 GeV. We further constrain the range of the parameter space favored by interpretations of the discrepancy between the calculated and measured anomalous magnetic moment of the muon.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gavrilov G, 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, Gotti C, 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, 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, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lu H, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Maratas J, Marchand JF, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, 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 LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani 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, 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, Price E, 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 S, Rihl M, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, 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, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, 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, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, 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, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht 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, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of the B¯s⁰ meson lifetime in Ds⁺π⁻ decays. PHYSICAL REVIEW LETTERS 2014; 113:172001. [PMID: 25379914 DOI: 10.1103/physrevlett.113.172001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Indexed: 06/04/2023]
Abstract
We present a measurement of the ratio of the B¯s⁰ meson lifetime, in the flavor-specific decay to Ds⁺π⁻, to that of the B¯⁰ meson. The pp collision data used correspond to an integrated luminosity of 1 fb(-1), collected with the LHCb detector, at a center-of-mass energy of 7 TeV. Combining our measured value of 1.010±0.010±0.008 for this ratio with the known B¯⁰ lifetime, we determine the flavor-specific B¯s⁰ lifetime to be τ(B¯s⁰ )=1.535±0.015±0.014 ps, where the uncertainties are statistical and systematic, respectively. This is the most precise measurement to date, and is consistent with previous measurements and theoretical predictions.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gavrilov G, Geraci A, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gianelle A, Gianì S, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gotti C, 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, 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, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lu H, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Mapelli A, Maratas J, Marchand JF, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, 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 LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani 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, 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, Price E, 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 S, Rihl M, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, 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, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, 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, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, 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, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht 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, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Observation of overlapping spin-1 and spin-3 D0K- resonances at mass 2.86 GeV/c2. PHYSICAL REVIEW LETTERS 2014; 113:162001. [PMID: 25361252 DOI: 10.1103/physrevlett.113.162001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Indexed: 06/04/2023]
Abstract
The resonant substructure of B(s)(0) → D(0)K(-)π(+) decays is studied using a data sample corresponding to an integrated luminosity of 3.0 fb(-1) of pp collision data recorded by the LHCb detector. An excess at m(D(0)K(-))≈ 2.86 GeV/c(2) is found to be an admixture of spin-1 and spin-3 resonances. Therefore, the D(sJ)*(2860)(-) state previously observed in inclusive e(+)e(-) → D(0)K(-)X and pp → D(0)K(-)X processes consists of at least two particles. This is the first observation of a heavy flavored spin-3 resonance, and the first time that any spin-3 particle has been seen to be produced in B decays. The masses and widths of the new states and of the D(s2)*(2573)(-) meson are measured, giving the most precise determinations to date.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Battista V, Bay A, Beaucourt L, 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, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gavrilov G, 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, Gotti C, 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, 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, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marchand JF, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, 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, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani 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, 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, Price E, 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 S, Rihl M, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, 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, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, 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, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, 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, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht 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, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Test of lepton universality using b+ → K+ℓ+ℓ- decays. PHYSICAL REVIEW LETTERS 2014; 113:151601. [PMID: 25375701 DOI: 10.1103/physrevlett.113.151601] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Indexed: 06/04/2023]
Abstract
A measurement of the ratio of the branching fractions of the B(+) → K(+)μ(+)μ(-) and B(+) → K(+)e(+)e(-) decays is presented using proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb(-1), recorded with the LHCb experiment at center-of-mass energies of 7 and 8 TeV. The value of the ratio of branching fractions for the dilepton invariant mass squared range 1 < q(2) < 6 GeV(2)/c(4) is measured to be 0.745(-0.074)(+0.090)(stat) ± 0.036(syst). This value is the most precise measurement of the ratio of branching fractions to date and is compatible with the standard model prediction within 2.6 standard deviations.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Cojocariu L, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gavrilov G, Geraci A, 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, Gotti C, 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, 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, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lu H, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Maratas J, Marchand JF, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, 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 LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani 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, 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, Price E, 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 S, Rihl M, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Rodrigues AB, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rotondo M, Rouvinet J, Ruf T, Ruiz H, Ruiz Valls P, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, 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, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, 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, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht 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, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. First observation of a baryonic Bc+ decay. PHYSICAL REVIEW LETTERS 2014; 113:152003. [PMID: 25375705 DOI: 10.1103/physrevlett.113.152003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Indexed: 06/04/2023]
Abstract
A baryonic decay of the B(c)(+) meson, B(c)(+) → J/ψppπ(+), is observed for the first time, with a significance of 7.3 standard deviations, in pp collision data collected with the LHCb detector and corresponding to an integrated luminosity of 3.0 fb(-1) taken at center-of-mass energies of 7 and 8 TeV. With the B(c)(+) → J/ψπ(+) decay as the normalization channel, the ratio of branching fractions is measured to be B(B(c)(+) → J/ψppπ(+))/B(B(c)(+) → J/ψπ(+)) = 0.143(-0.034)(+0.039)(stat) ± 0.013(syst). The mass of the B(c)(+) meson is determined as M(B(c)(+) = 6274.0 ± 1.8(stat) ± 0.4(syst) MeV/c(2), using the B(c)(+) → J/ψppπ(+) channel.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Batozskaya V, Battista V, Bay A, Beaucourt L, 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, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chefdeville M, Chen S, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gavrilov G, 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, Gotti C, 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, 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, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, 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, Likhomanenko T, Liles M, Lindner R, Linn C, Lionetto F, Liu B, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lowdon P, Lu H, Lucchesi D, Luo H, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Malinin A, Manca G, Mancinelli G, Maratas J, Marchand JF, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, 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 LL, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani 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, 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, Price E, 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 S, Rihl M, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, 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, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sarti A, Satriano C, Satta A, Saunders DM, 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, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, 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, Sridharan S, Stagni F, Stahl M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht 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, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Evidence for CP violation in B+ → ppK+ decays. PHYSICAL REVIEW LETTERS 2014; 113:141801. [PMID: 25325630 DOI: 10.1103/physrevlett.113.141801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Indexed: 06/04/2023]
Abstract
Three-body B+ → ppK+ and B(+) → ppπ(+) decays are studied using a data sample corresponding to an integrated luminosity of 3.0 fb(-1) collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV. Evidence of CP violation in the B(+) → ppK(+) decay is found in regions of the phase space, representing the first measurement of this kind for a final state containing baryons. Measurements of the forward-backward asymmetry of the light meson in the pp rest frame yield A(FB)(ppK(+),m(pp)<2.85 GeV/c(2)) = 0.495 ± 0.012 (stat) ± 0.007 (syst) and A(FB)(ppπ(+),m(pp) <2.85 GeV/c(2)) = -0.409 ± 0.033 (stat) ± 0.006 (syst). In addition, the branching fraction of the decay B(+) → Λ(1520)p is measured to be B(B(+) → Λ(1520)p) = (3.15 ± 0.48 (stat) ± 0.07 (syst) ± 0.26 (BF)) × 10(-7), where BF denotes the uncertainty on secondary branching fractions.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Battista V, Bay A, Beaucourt L, 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, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, 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 S, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Fay R, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, García Pardiñas J, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gavrilov G, 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, Gotti C, 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, Han X, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, 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, Jalocha J, 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, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Klimaszewski K, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, 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, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marchand JF, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Muresan R, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, 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, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani 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, 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, Price E, 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 S, Rihl M, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, 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, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Saunders DM, 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, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, 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 M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tomassetti L, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht 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, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. First measurement of the charge asymmetry in beauty-quark pair production. PHYSICAL REVIEW LETTERS 2014; 113:082003. [PMID: 25192090 DOI: 10.1103/physrevlett.113.082003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Indexed: 06/03/2023]
Abstract
The difference in the angular distributions between beauty quarks and antiquarks, referred to as the charge asymmetry, is measured for the first time in bb pair production at a hadron collider. The data used correspond to an integrated luminosity of 1.0 fb(-1) collected at 7 TeV center-of-mass energy in proton-proton collisions with the LHCb detector. The measurement is performed in three regions of the invariant mass of the bb system. The results obtained are A(C)(bb))(40<M(bb))<75 GeV/c(2)) = 0.4 ± 0.4 ± 0.3%, A(C)(bb))(75<M(bb)) < 105 GeV/c(2)) = 2.0 ± 0.9 ± 0.6%, A(C)(bb)(M(bb)) > 105 GeV/c(2)) = 1.6 ± 1.7 ± 0.6%, where A(C)(bb)) is defined as the asymmetry in the difference in rapidity between jets formed from the beauty quark and antiquark, where in each case the first uncertainty is statistical and the second systematic. The beauty jets are required to satisfy 2 < η < 4, E(T) >20 GeV, and have an opening angle in the transverse plane Δ ϕ > 2.6 rad. These measurements are consistent with the predictions of the standard model.
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Palombo F, Madami M, Stone N, Fioretto D. Mechanical mapping with chemical specificity by confocal Brillouin and Raman microscopy. Analyst 2014; 139:729-33. [PMID: 24396853 DOI: 10.1039/c3an02168h] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We describe the first application of confocal Brillouin and Raman microscopy to ex vivo human epithelial tissue - Barrett's oesophagus. This non-invasive label-free approach provides high-resolution mechanical mapping with chemical specificity, opening the route to a new integrated method for multiple biomedical and bioengineering applications, and potentially in vivo real-time diagnostics.
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Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, An L, 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, Battista V, Bay A, Beaucourt L, 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, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, 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 S, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dreimanis K, Dujany G, 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, Ely S, Esen S, Evans HM, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, Garofoli J, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gavardi L, Gavrilov G, 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, Gotti C, 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, Han X, 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, Jalocha J, 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, Karodia S, Kelsey M, Kenyon IR, Ketel T, Khanji B, Khurewathanakul C, Klaver S, Kochebina O, Kolpin M, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucewicz W, 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, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marchand JF, 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, Moggi N, Molina Rodriguez J, Monteil S, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Muresan R, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Novoselov A, O'Hanlon DP, 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, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani 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, 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, Price E, 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 S, Rihl M, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, 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, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Saunders DM, 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, Sepp I, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, 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 M, Stahl S, Steinkamp O, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht 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, Xu Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Precision measurement of the mass and lifetime of the Ξ(b)(0) baryon. PHYSICAL REVIEW LETTERS 2014; 113:032001. [PMID: 25083633 DOI: 10.1103/physrevlett.113.032001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Indexed: 06/03/2023]
Abstract
Using a proton-proton collision data sample corresponding to an integrated luminosity of 3 fb(-1) collected by LHCb at center-of-mass energies of 7 and 8 TeV, about 3800 Ξ(b)(0) → Ξ(c)(+)π(-), Ξ(c)(+)) → pK(-)π(+) signal decays are reconstructed. From this sample, the first measurement of the Ξ(b)(0) baryon lifetime is made, relative to that of the Λ(b)(0) baryon. The mass differences M(Ξ(b)(0))-M(Λ(b)(0)) and M(Ξ(c)(+))-M(Λ(c)(+)) are also measured with precision more than 4 times better than the current world averages. The resulting values are τ(Ξ(b)(0))/τ(Λ)(b)(0)) = 1.006 ± 0.018 ± 0.010,M(Ξ(b)(0))-M(Λ(b)(0)) = 172.44 ± 0.39 ± 0.17 MeV/c(2),M(Ξ(c)(+))-M(Λ(c)(+)) = 181.51 ± 0.14 ± 0.10 MeV/c(2),where the first uncertainty is statistical and the second is systematic. The relative rate of Ξ(b)(0) to Λ(b)(0) baryon production is measured to be f(Ξ)(b)(0))/f(Λ)(b)(0))B(Ξ(b)(0) → Ξ(c)(+)π(-))/B(Λ(b)(0) → Λ(c)(+)π(-))B(Ξ(c)(+) → pK(-)π(+))/B(Λ(c)(+) → pK(-)}π(+)) = (1.88 ± 0.04 ± 0.03) × 10(-2),where the first factor is the ratio of fragmentation fractions, b → Ξ(b)(0) relative to b → Λ(b)(0). Relative production rates as functions of transverse momentum and pseudorapidity are also presented.
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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, An L, 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, Beaucourt L, 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, Brodzicka J, Brook NH, Brown H, Bursche A, Busetto G, Buytaert J, Cadeddu S, Calabrese R, 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 S, Cheung SF, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Corvo M, 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 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, Dosil Suárez A, Dossett D, Dovbnya A, Dujany G, 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, Ely S, Esen S, Evans T, Falabella A, Färber C, Farinelli C, Farley N, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Fu J, Furfaro E, Gallas Torreira A, Galli D, Gallorini S, 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, Gotti C, 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, Han X, 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, Jalocha J, Jans E, Jaton P, Jawahery A, Jezabek M, 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, Kolpin M, 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, Lupato A, Luppi E, Lupton O, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Manzali M, Maratas J, Marchand JF, 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, Moggi N, Molina Rodriguez J, Monteil S, Moran D, Morandin M, Morawski P, Mordà A, Morello MJ, Moron J, Morris AB, Mountain R, Muheim F, Müller K, Muresan R, Mussini M, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, 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, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrignani 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, 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, Rihl M, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, 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, Sanchez Mayordomo C, 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, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, 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, Stenyakin O, Stevenson S, Stoica S, Stone S, Storaci B, Stracka S, Straticiuc M, Straumann U, Stroili R, Subbiah VK, Sun L, Sutcliffe W, Swientek K, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szilard D, Szumlak T, T'Jampens S, Teklishyn M, Tellarini G, 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, Vieites Diaz M, 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, Walsh J, Wandernoth S, Wang J, Ward DR, Watson NK, Websdale D, Whitehead M, Wicht 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, Xu 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 resonant character of the Z(4430)(-) state. PHYSICAL REVIEW LETTERS 2014; 112:222002. [PMID: 24949760 DOI: 10.1103/physrevlett.112.222002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Indexed: 06/03/2023]
Abstract
Resonant structures in B^{0}→ψ^{'}π^{-}K^{+} decays are analyzed by performing a four-dimensional fit of the decay amplitude, using pp collision data corresponding to 3 fb^{-1} collected with the LHCb detector. The data cannot be described with K^{+}π^{-} resonances alone, which is confirmed with a model-independent approach. A highly significant Z(4430)^{-}→ψ^{'}π^{-} component is required, thus confirming the existence of this state. The observed evolution of the Z(4430)^{-} amplitude with the ψ^{'}π^{-} mass establishes the resonant nature of this particle. The mass and width measurements are substantially improved. The spin parity is determined unambiguously to be 1^{+}.
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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, vanden 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, 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, 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, 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, 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, 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, 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, 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, De Paula BS, 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. Measurement of charged particle multiplicities and densities in [Formula: see text] collisions at [Formula: see text]TeV in the forward region. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2014; 74:2888. [PMID: 25814891 PMCID: PMC4371048 DOI: 10.1140/epjc/s10052-014-2888-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 04/30/2014] [Indexed: 05/25/2023]
Abstract
Charged particle multiplicities are studied in proton-proton collisions in the forward region at a centre-of-mass energy of [Formula: see text]TeV with data collected by the LHCb detector. The forward spectrometer allows access to a kinematic range of [Formula: see text] in pseudorapidity, momenta greater than [Formula: see text] and transverse momenta greater than [Formula: see text]. The measurements are performed using events with at least one charged particle in the kinematic acceptance. The results are presented as functions of pseudorapidity and transverse momentum and are compared to predictions from several Monte Carlo event generators.
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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, An L, 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, 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, Corvo M, 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 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, 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, 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F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of [Formula: see text] polarisation in [Formula: see text] collisions at [Formula: see text] = 7 TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2014; 74:2872. [PMID: 25814889 PMCID: PMC4370868 DOI: 10.1140/epjc/s10052-014-2872-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 04/23/2014] [Indexed: 06/04/2023]
Abstract
The polarisation of prompt [Formula: see text] mesons is measured by performing an angular analysis of [Formula: see text] decays using proton-proton collision data, corresponding to an integrated luminosity of 1.0[Formula: see text], collected by the LHCb detector at a centre-of-mass energy of 7 TeV. The polarisation is measured in bins of transverse momentum [Formula: see text] and rapidity [Formula: see text] in the kinematic region [Formula: see text] and [Formula: see text], and is compared to theoretical models. No significant polarisation is observed.
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