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Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, Anderlini L, Anderson J, Andreassen R, Andrews JE, Appleby RB, Aquines Gutierrez O, Archilli F, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Bachmann S, Back JJ, Badalov A, Baesso C, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bauer T, Bay A, Beddow J, Bedeschi F, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Benton J, Berezhnoy A, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blusk S, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJV, Bowen E, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook NH, Brown H, Burducea I, Bursche A, Busetto G, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D, Carbone A, Carboni G, Cardinale R, Cardini A, Carranza-Mejia H, Carson L, Carvalho Akiba K, Casse G, Castillo Garcia L, Cattaneo M, Cauet C, Cenci R, Charles M, Charpentier P, Chen P, Chiapolini N, Chrzaszcz M, Ciba K, Cid Vidal X, Ciezarek G, Clarke PEL, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Cogneras E, Collins P, Comerma-Montells A, Contu A, Cook A, Coombes M, Coquereau S, Corti G, Couturier B, Cowan GA, Cowie E, Craik DC, Cunliffe S, Currie R, D'Ambrosio C, David P, David PNY, Davis A, De Bonis I, De Bruyn K, De Capua S, De Cian M, De Miranda JM, De Paula L, De Silva W, De Simone P, Decamp D, Deckenhoff M, Del Buono L, Déléage N, Derkach D, Deschamps O, Dettori F, Di Canto A, Dijkstra H, Dogaru M, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Durante P, Dzhelyadin R, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, El Rifai I, Elsasser C, Falabella A, Färber C, Farinelli C, Farry S, Ferguson D, Fernandez Albor V, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fiore M, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furfaro E, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garofoli J, Garosi P, Garra Tico J, Garrido L, Gaspar C, Gauld R, Gersabeck E, Gersabeck M, Gershon T, Ghez P, Gibson V, Giubega L, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gordon H, Gotti C, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso LA, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Griffith P, Grünberg O, Gui B, Gushchin E, Guz Y, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines SC, Hall S, Hamilton B, Hampson T, Hansmann-Menzemer S, Harnew N, Harnew ST, Harrison J, Hartmann T, He J, Head T, Heijne V, Hennessy K, Henrard P, Hernando Morata JA, van Herwijnen E, Hess M, Hicheur A, Hicks E, Hill D, Hoballah M, Holtrop M, Hombach C, Hulsbergen W, Hunt P, Huse T, Hussain N, Hutchcroft D, Hynds D, Iakovenko V, Idzik M, Ilten P, Jacobsson R, Jaeger A, Jans E, Jaton P, Jawahery A, Jing F, John M, Johnson D, Jones CR, Joram C, Jost B, Kaballo M, Kandybei S, Kanso W, Karacson M, Karbach TM, Kenyon IR, Ketel T, Khanji B, Kochebina O, Komarov I, Koopman RF, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kucharczyk M, Kudryavtsev V, Kurek K, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leo S, Leroy O, Lesiak T, Leverington B, Li Y, Li Gioi L, Liles M, Lindner R, Linn C, Liu B, Liu G, Lohn S, Longstaff I, Lopes JH, Lopez-March N, Lu H, Lucchesi D, Luisier J, Luo H, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Malde S, Manca G, Mancinelli G, Maratas J, Marconi U, Marino P, Märki R, Marks J, Martellotti G, Martens A, Martín Sánchez A, Martinelli M, Martinez Santos D, Martins Tostes D, Martynov A, Massafferri A, Matev R, Mathe Z, Matteuzzi C, Maurice E, Mazurov A, McCarthy J, McNab A, McNulty R, McSkelly B, Meadows B, Meier F, Meissner M, Merk M, Milanes DA, Minard MN, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mordà A, Morello MJ, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Naik P, Nakada T, Nandakumar R, Nasteva I, Needham M, Neubert S, Neufeld N, Nguyen AD, Nguyen TD, Nguyen-Mau C, Nicol M, Niess V, Niet R, Nikitin N, Nikodem T, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea JM, Owen P, Oyanguren A, Pal BK, Palano A, Palczewski T, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Patrick GN, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pescatore L, Pesen E, Petridis K, Petrolini A, Phan A, Picatoste Olloqui E, Pietrzyk B, Pilař T, Pinci D, Playfer S, Plo Casasus M, Polci F, Polok G, Poluektov A, Polycarpo E, Popov A, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pritchard A, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Rademacker JH, Rakotomiaramanana B, Rangel MS, Raniuk I, Rauschmayr N, Raven G, Redford S, Reichert S, Reid MM, dos Reis AC, Ricciardi S, Richards A, Rinnert K, Rives Molina V, Roa Romero DA, Robbe P, Roberts DA, Rodrigues E, Rodriguez Perez P, Roiser S, Romanovsky V, Romero Vidal A, Rouvinet J, Ruf T, Ruffini F, Ruiz H, Ruiz Valls P, Sabatino G, Saborido Silva JJ, Sagidova N, Sail P, Saitta B, Salustino Guimaraes V, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Sirendi M, Skidmore N, Skwarnicki T, Smith NA, Smith E, Smith J, Smith M, Sokoloff MD, Soler FJP, Soomro F, Souza D, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stevenson S, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah VK, Sun L, Swientek S, Syropoulos V, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teklishyn M, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Tolk S, Tonelli D, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran MT, Tresch M, Tsaregorodtsev A, Tsopelas P, Tuning N, Ubeda Garcia M, Ukleja A, Ustyuzhanin A, Uwer U, Vagnoni V, Valenti G, Vallier A, Van Dijk M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis JJ, Veltri M, Veneziano G, Vesterinen M, Viaud B, Vieira D, Vilasis-Cardona X, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Vorobyev V, Voß C, Voss H, Waldi R, Wallace C, Wallace R, Wandernoth S, Wang J, Ward DR, Watson NK, Webber AD, Websdale D, Whitehead M, Wicht J, Wiechczynski J, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wimberley J, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton SA, Wright S, Wu S, Wyllie K, Xie Y, Xing Z, Yang Z, Yuan X, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhokhov A, Zhong L, Zvyagin A. Measurement of the Bs(0)→μ+ μ- branching fraction and search for B(0)→μ+ μ- decays at the LHCb experiment. PHYSICAL REVIEW LETTERS 2013; 111:101805. [PMID: 25166655 DOI: 10.1103/physrevlett.111.101805] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Indexed: 06/03/2023]
Abstract
A search for the rare decays Bs(0)→μ+ μ- and B(0)→μ+ μ- is performed at the LHCb experiment. The data analyzed correspond to an integrated luminosity of 1 fb(-1) of pp collisions at a center-of-mass energy of 7 TeV and 2 fb(-1) at 8 TeV. An excess of Bs(0)→μ+ μ- signal candidates with respect to the background expectation is seen with a significance of 4.0 standard deviations. A time-integrated branching fraction of B(Bs(0)→μ+ μ-)=(2.9(-1.0)(+1.1))×10(-9) is obtained and an upper limit of B(B(0)→μ+ μ-)<7.4×10(-10) at 95% confidence level is set. These results are consistent with the standard model expectations.
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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, Yushkov AN, Kirkby D, Lankford AJ, Mandelkern M, Dey B, Gary JW, Long O, Vitug GM, Campagnari C, Franco Sevilla M, Hong TM, Kovalskyi D, Richman JD, West CA, Eisner AM, Lockman WS, Martinez AJ, Schumm BA, Seiden A, Chao DS, Cheng CH, Echenard B, Flood KT, Hitlin DG, Ongmongkolkul P, Porter FC, Andreassen R, Huard Z, Meadows BT, Sokoloff MD, Sun L, Bloom PC, Ford WT, Gaz A, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Spaan B, Schubert KR, Schwierz R, Bernard D, Verderi M, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Martellotti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Morii M, Adametz A, Uwer U, Lacker HM, Dauncey PD, Mallik U, Chen C, Cochran J, Meyer WT, Prell S, Rubin AE, 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, Prencipe E, Barlow RJ, Lafferty GD, Behn E, Cenci R, Hamilton B, Jawahery A, Roberts DA, Cowan R, Dujmic D, Sciolla G, Cheaib R, Patel PM, Robertson SH, Biassoni P, Neri N, Palombo F, Cremaldi L, Godang R, Sonnek P, Summers DJ, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop CP, LoSecco JM, Honscheid K, Kass R, Brau J, Frey R, Sinev NB, Strom D, Torrence E, 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, Sitt S, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, 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, Piredda G, Bünger C, Grünberg O, Hartmann T, Leddig T, Voß C, Waldi R, Adye T, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Anulli F, Aston D, Bard DJ, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Ebert M, Field RC, Fulsom BG, Gabareen AM, Graham MT, Hast C, Innes WR, Kim P, Kocian ML, Leith DWGS, Lewis P, Lindemann D, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Muller DR, Neal H, Nelson S, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Snyder A, Su D, Sullivan MK, Va'vra J, Wagner AP, Wang WF, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Ziegler V, Park W, Purohit MV, White RM, Wilson JR, Randle-Conde A, Sekula SJ, Bellis M, Burchat PR, Miyashita TS, 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, Zambito S, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Villanueva-Perez P, Ahmed H, Albert J, Banerjee S, 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 CP violation in B0-B0 mixing using partial reconstruction of B0→D*- Xℓ+ νℓ and a kaon tag. PHYSICAL REVIEW LETTERS 2013; 111:101802. [PMID: 25166652 DOI: 10.1103/physrevlett.111.101802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Indexed: 06/03/2023]
Abstract
We present results of a search for CP violation in B0- B0 mixing with the BABAR detector. We select a sample of B0→D*- Xℓ+ ν decays with a partial reconstruction method and use kaon tagging to assess the flavor of the other B meson in the event. We determine the CP violating asymmetry ACP≡[N(B0B0)-N(B0B0)]/[N(B0B0)+N(B0B0)]=(0.06±0.17(-0.32)(+0.38))%, corresponding to ΔCP=1-|q/p|=(0.29±0.84(-1.61)(+1.88))×10(-3).
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Labby ZE, Roberts DA, Chaudhary N, Gemmete JJ, Pandey AS. SU-E-T-415: Dosimetric Measurements of An N-Butyl Cyanoacrylate Embolization Material for Arteriovenous Malformations. Med Phys 2013. [DOI: 10.1118/1.4814849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Thieman JR, Roberts DA, King TA. SPASE: The Connection along Solar and Space Physics Data Centers. DATA SCIENCE JOURNAL 2013. [DOI: 10.2481/dsj.wds-025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Lees JP, Poireau V, Tisserand V, Garra Tico J, Grauges E, Palano A, Eigen G, Stugu B, Brown DN, Kerth LT, Kolomensky YG, Lynch G, Koch H, Schroeder T, Asgeirsson DJ, 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, Yushkov AN, Bondioli M, Kirkby D, Lankford AJ, Mandelkern M, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, West CA, Eisner AM, Kroseberg J, Lockman WS, Martinez AJ, Schumm BA, Seiden A, Chao DS, Cheng CH, Echenard B, Flood KT, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Huard Z, Meadows BT, Sokoloff MD, Sun L, Bloom PC, Ford WT, Gaz A, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Spaan B, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Munerato M, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Lee CL, Morii M, Edwards AJ, Adametz A, Uwer U, Lacker HM, Lueck T, Dauncey PD, Mallik U, Chen C, Cochran J, Meyer WT, Prell S, Rubin AE, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Roudeau P, Schune MH, Stocchi A, Wormser G, Lange DJ, Wright DM, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Griessinger K, Hafner A, Prencipe E, Barlow RJ, Jackson G, Lafferty GD, Behn E, Cenci R, Hamilton B, Jawahery A, Roberts DA, Dallapiccola C, Cowan R, Dujmic D, Sciolla G, Cheaib R, Lindemann D, Patel PM, Robertson SH, Biassoni P, Neri N, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop CP, Losecco JM, Wang WF, Honscheid K, Kass R, Brau J, Frey R, Sinev NB, Strom D, Torrence E, Feltresi E, Gagliardi N, Margoni M, Morandin M, Pompili A, 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, Hamon O, Leruste P, Marchiori G, Ocariz J, Sitt S, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh JJ, Lopes Pegna D, Olsen J, Smith AJS, Telnov AV, Anulli F, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Bünger C, Grünberg O, Hartmann T, Leddig T, Schröder H, Voss C, Waldi R, Adye T, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Ebert M, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim P, Kocian ML, Leith DWGS, Lewis P, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Muller DR, Neal H, Nelson S, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Snyder A, Su D, Sullivan MK, Va'vra J, Wagner AP, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Young CC, Ziegler V, Park W, Purohit MV, White RM, Wilson JR, Randle-Conde A, Sekula SJ, Bellis M, Burchat PR, Miyashita TS, Puccio EMT, Alam MS, Ernst JA, Gorodeisky R, Guttman N, Peimer DR, Soffer A, Lund P, Spanier SM, Ritchie JL, Ruland AM, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Zambito S, Lanceri L, Vitale L, Bernabeu J, Martinez-Vidal F, Oyanguren A, Villanueva-Perez P, Ahmed H, Albert J, Banerjee S, Bernlochner FU, Choi HHF, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Tasneem N, Gershon TJ, Harrison PF, Latham TE, Band HR, Dasu S, Pan Y, Prepost R, Wu SL. Observation of time-reversal violation in the B0 meson system. PHYSICAL REVIEW LETTERS 2012; 109:211801. [PMID: 23215586 DOI: 10.1103/physrevlett.109.211801] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Indexed: 06/01/2023]
Abstract
Although CP violation in the B meson system has been well established by the B factories, there has been no direct observation of time-reversal violation. The decays of entangled neutral B mesons into definite flavor states (B(0) or B(0)), and J/ψK(L)(0) or ccK(S)(0) final states (referred to as B(+) or B(-)), allow comparisons between the probabilities of four pairs of T-conjugated transitions, for example, B(0) → B(-) and B(-) → B(0), as a function of the time difference between the two B decays. Using 468 × 10(6) BB pairs produced in Υ(4S) decays collected by the BABAR detector at SLAC, we measure T-violating parameters in the time evolution of neutral B mesons, yielding ΔS(T)(+) = -1.37 ± 0.14(stat) ± 0.06(syst) and ΔS(T)(-) = 1.17 ± 0.18(stat) ± 0.11(syst). These nonzero results represent the first direct observation of T violation through the exchange of initial and final states in transitions that can only be connected by a T-symmetry transformation.
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Lees JP, Poireau V, Tisserand V, Garra Tico J, Grauges E, Palano A, Eigen G, Stugu B, Brown DN, Kerth LT, Kolomensky YG, Lynch G, Koch H, Schroeder T, Asgeirsson DJ, 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, Yushkov AN, Bondioli M, Kirkby D, Lankford AJ, Mandelkern M, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, West CA, Eisner AM, Kroseberg J, Lockman WS, Martinez AJ, Schumm BA, Seiden A, Winstrom L, Chao DS, Cheng CH, Echenard B, Flood KT, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Huard Z, Meadows BT, Sokoloff MD, Sun L, Bloom PC, Ford WT, Gaz A, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Spaan B, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Munerato M, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Lee CL, Morii M, Edwards AJ, Adametz A, Uwer U, Lacker HM, Lueck T, Dauncey PD, Mallik U, Chen C, Cochran J, Meyer WT, Prell S, Rubin AE, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Roudeau P, Schune MH, Stocchi A, Wormser G, Lange DJ, Wright DM, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Griessinger K, Hafner A, Prencipe E, Barlow RJ, Jackson G, Lafferty GD, Behn E, Cenci R, Hamilton B, Jawahery A, Roberts DA, Dallapiccola C, Cowan R, Dujmic D, Sciolla G, Cheaib R, Lindemann D, Patel PM, Robertson SH, Biassoni P, Neri N, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop CP, Knoepfel K, Losecco JM, Wang WF, Honscheid K, Kass R, Brau J, Frey R, Lu M, Sinev NB, Strom D, Torrence E, Feltresi E, Gagliardi N, 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, Hamon O, Leruste P, Marchiori G, Ocariz J, Sitt S, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh JJ, Lopes Pegna D, Olsen J, Smith AJS, Telnov AV, Anulli F, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Bünger C, Grünberg O, Hartmann T, Leddig T, Schröder H, Voss C, Waldi R, Adye T, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Aston D, Bard DJ, Bartoldus R, Bechtle P, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Ebert M, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim P, Kocian ML, Leith DWGS, Lewis P, Lindquist B, Luitz S, Luth V, Lynch HL, Macfarlane DB, Muller DR, Neal H, Nelson S, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Snyder A, Su D, Sullivan MK, Va'vra J, Wagner AP, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Young CC, Ziegler V, Park W, Purohit MV, White RM, Wilson JR, Randle-Conde A, Sekula SJ, Bellis M, Burchat PR, Miyashita TS, Alam MS, Ernst JA, Gorodeisky R, Guttman N, Peimer DR, Soffer A, Lund P, Spanier SM, Ritchie JL, Ruland AM, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Zambito S, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Ahmed H, Albert J, Banerjee S, Bernlochner FU, Choi HHF, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Tasneem N, Gershon TJ, Harrison PF, Latham TE, Puccio EMT, Band HR, Dasu S, Pan Y, Prepost R, Wu SL. Precision measurement of the B → Xs γ photon energy spectrum, branching fraction, and direct CP asymmetry A(CP)((B → X(s+d)γ). PHYSICAL REVIEW LETTERS 2012; 109:191801. [PMID: 23215373 DOI: 10.1103/physrevlett.109.191801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Indexed: 06/01/2023]
Abstract
The photon spectrum in the inclusive electromagnetic radiative decays of the B meson, B → X(s)γ plus B → X(d)γ, is studied using a data sample of (382.8 ± 4.2) × 10(6)Υ(4S) → BB decays collected by the BABAR experiment at SLAC. The spectrum is used to extract the branching fraction B(B → X(s)γ) = (3.21 ± 0.33) × 10(-4) for E(γ) >1.8 GeV and the direct CP asymmetry A(CP) (B → X(s+d)γ) = 0.057 ± 0.063. The effects of detector resolution and Doppler smearing are unfolded to measure the photon energy spectrum in the B meson rest frame.
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Lees JP, Poireau V, Tisserand V, Garra Tico J, Grauges E, Palano A, Eigen G, Stugu B, Brown DN, Kerth LT, Kolomensky YG, Lynch G, Koch H, Schroeder T, Asgeirsson DJ, 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, Yushkov AN, Bondioli M, Kirkby D, Lankford AJ, Mandelkern M, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, West CA, Eisner AM, Kroseberg J, Lockman WS, Martinez AJ, Schumm BA, Seiden A, Chao DS, Cheng CH, Echenard B, Flood KT, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Huard Z, Meadows BT, Sokoloff MD, Sun L, Bloom PC, Ford WT, Gaz A, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Spaan B, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Munerato M, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Lee CL, Morii M, Edwards AJ, Adametz A, Uwer U, Lacker HM, Lueck T, Dauncey PD, Mallik U, Chen C, Cochran J, Meyer WT, Prell S, Rubin AE, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Roudeau P, Schune MH, Stocchi A, Wormser G, Lange DJ, Wright DM, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Griessinger K, Hafner A, Prencipe E, Barlow RJ, Jackson G, Lafferty GD, Behn E, Cenci R, Hamilton B, Jawahery A, Roberts DA, Dallapiccola C, Cowan R, Dujmic D, Sciolla G, Cheaib R, Lindemann D, Patel PM, Robertson SH, Biassoni P, Neri N, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop CP, LoSecco JM, Wang WF, Honscheid K, Kass R, Brau J, Frey R, Sinev NB, Strom D, Torrence E, Feltresi E, Gagliardi N, 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, Hamon O, Leruste P, Marchiori G, Ocariz J, Sitt S, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh JJ, Lopes Pegna D, Olsen J, Smith AJS, Telnov AV, Anulli F, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Bünger C, Grünberg O, Hartmann T, Leddig T, Schröder H, Voss C, Waldi R, Adye T, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Ebert M, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim P, Kocian ML, Leith DWGS, Lewis P, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Muller DR, Neal H, Nelson S, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Snyder A, Su D, Sullivan MK, Va'vra J, Wagner AP, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Young CC, Ziegler V, Park W, Purohit MV, White RM, Wilson JR, Randle-Conde A, Sekula SJ, Bellis M, Burchat PR, Miyashita TS, Puccio EMT, Alam MS, Ernst JA, Gorodeisky R, Guttman N, Peimer DR, Soffer A, Lund P, Spanier SM, Ritchie JL, Ruland AM, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Zambito S, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Ahmed H, Albert J, Banerjee S, Bernlochner FU, Choi HHF, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Tasneem N, Gershon TJ, Harrison PF, Latham TE, Band HR, Dasu S, Pan Y, Prepost R, Wu SL. Evidence for an excess of B→D*τ(-)ν(τ) decays. PHYSICAL REVIEW LETTERS 2012; 109:101802. [PMID: 23005279 DOI: 10.1103/physrevlett.109.101802] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Indexed: 06/01/2023]
Abstract
Based on the full BABAR data sample, we report improved measurements of the ratios R(D(*))=B(B[over ¯]→D(*)τ(-)ν[over ¯](τ))/B(B[over ¯]→D(*)ℓ(ℓ)(-)ν[over ¯](ℓ)), where ℓ is either e or μ. These ratios are sensitive to new physics contributions in the form of a charged Higgs boson. We measure R(D)=0.440±0.058±0.042 and R(D(*))=0.332±0.024±0.018, which exceed the standard model expectations by 2.0σ and 2.7σ, respectively. Taken together, our results disagree with these expectations at the 3.4σ level. This excess cannot be explained by a charged Higgs boson in the type II two-Higgs-doublet model.
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Younge KC, Matuszak MM, Moran JM, McShan DL, Fraass BA, Roberts DA. TH-A-213AB-04: Improving VMAT Delivery Accuracy by Using an Aperture Complexity Penalty during Optimization. Med Phys 2012. [DOI: 10.1118/1.4736238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Lees JP, Poireau V, Tisserand V, Garra Tico J, Grauges E, Milanes DA, Palano A, Pappagallo M, Eigen G, Stugu B, Brown DN, Kerth LT, Kolomensky YG, Lynch G, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Khan A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Kravchenko EA, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Yushkov AN, Bondioli M, Kirkby D, Lankford AJ, Mandelkern M, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, West CA, Eisner AM, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Chao DS, Cheng CH, Doll DA, Echenard B, Flood KT, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Huard Z, Meadows BT, Sokoloff MD, Sun L, Bloom PC, Ford WT, Gaz A, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Spaan B, Kobel MJ, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Munerato M, Negrini M, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Lee CL, Morii M, Edwards AJ, Adametz A, Marks J, Uwer U, Lacker HM, Lueck T, Dauncey PD, Behera PK, Mallik U, Chen C, Cochran J, Meyer WT, Prell S, Rubin AE, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Roudeau P, Schune MH, Stocchi A, Wormser G, Lange DJ, Wright DM, Bingham I, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Prencipe E, Bailey D, Barlow RJ, Jackson G, Lafferty GD, Behn E, Cenci R, Hamilton B, Jawahery A, Roberts DA, Simi G, Dallapiccola C, Cowan R, Dujmic D, Sciolla G, Cheaib R, Lindemann D, Patel PM, Robertson SH, Schram M, Biassoni P, Neri N, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Martinelli M, Raven G, Jessop CP, Knoepfel KJ, Losecco JM, Wang WF, Honscheid K, Kass R, Brau J, Frey R, Sinev NB, Strom D, Torrence E, Feltresi E, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Akar S, Ben-Haim E, Bomben M, Bonneaud GR, Briand H, Calderini G, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Sitt S, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh JJ, Lopes Pegna D, Olsen J, Smith AJS, Telnov AV, Anulli F, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Bünger C, Grünberg O, Hartmann T, Leddig T, Schröder H, Voss C, Waldi R, Adye T, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Aston D, Bard DJ, Bartoldus R, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Ebert M, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim P, Kocian ML, Leith DWGS, Lewis P, Lindquist B, Luitz S, Luth V, Lynch HL, Macfarlane DB, Muller DR, Neal H, Nelson S, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Snyder A, Su D, Sullivan MK, Va'vra J, Wagner AP, Weaver M, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Young CC, Ziegler V, Park W, Purohit MV, White RM, Wilson JR, Randle-Conde A, Sekula SJ, Bellis M, Benitez JF, Burchat PR, Miyashita TS, Alam MS, Ernst JA, Gorodeisky R, Guttman N, Peimer DR, Soffer A, Lund P, Spanier SM, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Ahmed H, Albert J, Banerjee S, Bernlochner FU, Choi HHF, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Tasneem N, Gershon TJ, Harrison PF, Latham TE, Puccio EMT, Band HR, Dasu S, Pan Y, Prepost R, Wu SL. Search for low-mass dark-sector Higgs bosons. PHYSICAL REVIEW LETTERS 2012; 108:211801. [PMID: 23003239 DOI: 10.1103/physrevlett.108.211801] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Indexed: 06/01/2023]
Abstract
Recent astrophysical and terrestrial experiments have motivated the proposal of a dark sector with GeV-scale gauge boson force carriers and new Higgs bosons. We present a search for a dark Higgs boson using 516 fb(-1) of data collected with the BABAR detector. We do not observe a significant signal and we set 90% confidence level upper limits on the product of the standard model-dark-sector mixing angle and the dark-sector coupling constant.
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Lees JP, Poireau V, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Milanes DA, Palano A, Pappagallo M, Eigen G, Stugu B, Brown DN, Kerth LT, Kolomensky YG, Lynch G, Koch H, Schroeder T, Asgeirsson DJ, 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, Yushkov AN, Bondioli M, Kirkby D, Lankford AJ, Mandelkern M, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, West CA, Eisner AM, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Cheng CH, Doll DA, Echenard B, Flood KT, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Dubrovin MS, Huard Z, Meadows BT, Sokoloff MD, Sun L, Bloom PC, Ford WT, Gaz A, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Spaan B, Kobel MJ, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Munerato M, Negrini M, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Nicolaci M, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Bhuyan B, Prasad V, Lee CL, Morii M, Edwards AJ, Adametz A, Marks J, Uwer U, Bernlochner FU, Ebert M, Lacker HM, Lueck T, Dauncey PD, Tibbetts M, Behera PK, Mallik U, Chen C, Cochran J, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Roudeau P, Schune MH, Stocchi A, Wormser G, Lange DJ, Wright DM, Bingham I, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Prencipe E, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, Behn E, Cenci R, Hamilton B, Jawahery A, Roberts DA, Simi G, Dallapiccola C, Cowan R, Dujmic D, Sciolla G, Lindemann D, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Neri N, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Nguyen X, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Honscheid K, Kass R, Brau J, Frey R, Sinev NB, Strom D, Torrence E, Feltresi E, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Akar S, Ben-Haim E, Bomben M, Bonneaud GR, Briand H, Calderini G, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Sitt S, Biasini M, Manoni E, Pacetti S, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Oberhof B, Paoloni E, Perez A, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Bünger C, Grünberg O, Hartmann T, Leddig T, Schröder H, Waldi R, Adye T, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Lewis P, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Muller DR, Neal H, Nelson S, Ofte I, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Snyder A, Su D, Sullivan MK, Va'vra J, Wagner AP, Weaver M, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Park W, Purohit MV, White RM, Wilson JR, Randle-Conde A, Sekula SJ, Bellis M, Burchat PR, Miyashita TS, Alam MS, Ernst JA, Gorodeisky R, Guttman N, Peimer DR, Soffer A, Lund P, Spanier SM, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Ahmed H, Albert J, Banerjee S, Choi HHF, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Tasneem N, Gershon TJ, Harrison PF, Latham TE, Puccio EMT, Band HR, Dasu S, Pan Y, Prepost R, Wu SL. Search for hadronic decays of a light Higgs boson in the radiative decay Υ→γA0. PHYSICAL REVIEW LETTERS 2011; 107:221803. [PMID: 22182022 DOI: 10.1103/physrevlett.107.221803] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Indexed: 05/31/2023]
Abstract
We search for hadronic decays of a light Higgs boson (A(0)) produced in radiative decays of an Υ(2S) or Υ(3S) meson, Υ→γA(0). The data have been recorded by the BABAR experiment at the Υ(3S) and Υ(2S) center-of-mass energies and include (121.3±1.2)×10(6) Υ(3S) and (98.3±0.9)×10(6) Υ(2S) mesons. No significant signal is observed. We set 90% confidence level upper limits on the product branching fractions B(Υ(nS)→γA(0))B(A(0)→hadrons) (n=2 or 3) that range from 1×10(-6) for an A(0) mass of 0.3 GeV/c(2) to 8×10(-5) at 7 GeV/c(2).
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Sanchez PDA, Lees JP, Poireau V, Prencipe E, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Hooberman B, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tanabe T, Hawkes CM, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Khan A, Randle-Conde A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Yushkov AN, Bondioli M, Curry S, Kirkby D, Lankford AJ, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Winstrom LO, Cheng CH, Doll DA, Echenard B, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Dubrovin MS, Mancinelli G, Meadows BT, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Jasper H, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Nicolaci M, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Bhuyan B, Prasad V, Lee CL, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Ebert M, Lacker HM, Lueck T, Volk A, Dauncey PD, Tibbetts M, Behera PK, Mallik U, Chen C, Cochran J, Crawley HB, Dong L, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, da Costa JF, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Perez A, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wang L, Wormser G, Lange DJ, Wright DM, Bingham I, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Anderson J, Cenci R, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Sciolla G, Zhao M, Lindemann D, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kass R, Morris JP, Rahimi AM, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Feltresi E, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Ben-Haim E, Bonneaud GR, Briand H, Calderini G, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Prendki J, Sitt S, Biasini M, Manoni E, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Neri N, Paoloni E, Rizzo G, Walsh JJ, Pegna DL, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Renga F, Hartmann T, Leddig T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, de Monchenault GH, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Sevilla MF, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Santoro V, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Sun S, Suzuki K, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Park W, Purohit MV, White RM, Wilson JR, Sekula SJ, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Guttman N, Soffer A, Lund P, Spanier SM, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Lanceri L, Vitale L, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Latham TE, Puccio EMT, Band HR, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Observation of the decay B- → D(s)((*)+) K- ℓ- ν(ℓ). PHYSICAL REVIEW LETTERS 2011; 107:041804. [PMID: 21866995 DOI: 10.1103/physrevlett.107.041804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Indexed: 05/31/2023]
Abstract
We report the observation of the decay B- → D(s)((*)+) K- ℓ- ν(ℓ) based on 342 fb(-1) of data collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e+ e- storage rings at SLAC. A simultaneous fit to three D(s)(+) decay chains is performed to extract the signal yield from measurements of the squared missing mass in the B meson decay. We observe the decay B- → D(s)((*)+) K- ℓ- ν(ℓ) with a significance greater than 5 standard deviations (including systematic uncertainties) and measure its branching fraction to be B(B- → D(s)((*)+) K- ℓ- ν(ℓ)) = [6.13(-1.03)(+1.04)(stat)±0.43(syst)±0.51(B(D(s)))]×10(-4), where the last error reflects the limited knowledge of the D(s) branching fractions.
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Roberts DA, Hansen VN, Thompson MG, Poludniowski G, Niven A, Seco J, Evans PM. Comparative study of a low-Z cone-beam computed tomography system. Phys Med Biol 2011; 56:4453-64. [PMID: 21719950 DOI: 10.1088/0031-9155/56/14/014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Computed tomography images have been acquired using an experimental (low atomic number (Z) insert) megavoltage cone-beam imaging system. These images have been compared with standard megavoltage and kilovoltage imaging systems. The experimental system requires a simple modification to the 4 MeV electron beam from an Elekta Precise linac. Low-energy photons are produced in the standard medium-Z electron window and a low-Z carbon electron absorber located after the window. The carbon electron absorber produces photons as well as ensuring that all remaining electrons from the source are removed. A detector sensitive to diagnostic x-ray energies is also employed. Quantitative assessment of cone-beam computed tomography (CBCT) contrast shows that the low-Z imaging system is an order of magnitude or more superior to a standard 6 MV imaging system. CBCT data with the same contrast-to-noise ratio as a kilovoltage imaging system (0.15 cGy) can be obtained in doses of 11 and 244 cGy for the experimental and standard 6 MV systems, respectively. Whilst these doses are high for everyday imaging, qualitative images indicate that kilovoltage like images suitable for patient positioning can be acquired in radiation doses of 1-8 cGy with the experimental low-Z system.
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del Amo Sanchez P, Lees JP, Poireau V, Prencipe E, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Milanes DA, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Brown DN, Chistiakova MV, Jensen F, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Khan A, Randle-Conde A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Kravchenko EA, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Yushkov AN, Bondioli M, Curry S, Kirkby D, Lankford AJ, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, West C, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Winstrom LO, Cheng CH, Doll DA, Echenard B, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Dubrovin MS, Mancinelli G, Meadows BT, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Jasper H, Karbach TM, Petzold A, Spaan B, Kobel MJ, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Garzia I, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Nicolaci M, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Bhuyan B, Prasad V, Lee CL, Morii M, Adametz A, Marks J, Uwer U, Bernlochner FU, Ebert M, Lacker HM, Lueck T, Volk A, Dauncey PD, Tibbetts M, Behera PK, Mallik U, Chen C, Cochran J, Crawley HB, Dong L, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Perez A, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wang L, Wormser G, Lange DJ, Wright DM, Bingham I, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, Anderson J, Cenci R, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Sciolla G, Zhao M, Lindemann D, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kass R, Morris JP, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Feltresi E, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Ben-Haim E, Bonneaud GR, Briand H, Calderini G, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Prendki J, Sitt S, Biasini M, Manoni E, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Renga F, Hartmann T, Leddig T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Santoro V, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Sun S, Suzuki K, Thompson JM, Va'vra J, Wagner AP, Weaver M, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Park W, Purohit MV, White RM, Wilson JR, Sekula SJ, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Guttman N, Soffer A, Lund P, Spanier SM, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Lanceri L, Vitale L, Lopez-March N, Martinez-Vidal F, Oyanguren A, Albert J, Banerjee S, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Lindsay C, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Latham TE, Puccio EMT, Band HR, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Search for production of invisible final states in single-photon decays of Υ(1S). PHYSICAL REVIEW LETTERS 2011; 107:021804. [PMID: 21797597 DOI: 10.1103/physrevlett.107.021804] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Indexed: 05/31/2023]
Abstract
We search for single-photon decays of the Υ(1S) resonance, Υ → γ + invisible, where the invisible state is either a particle of definite mass, such as a light Higgs boson A⁰, or a pair of dark matter particles, χχ. Both A⁰ and χ are assumed to have zero spin. We tag Υ(1S) decays with a dipion transition Υ(2S) → π⁺π⁻Υ(1S) and look for events with a single energetic photon and significant missing energy. We find no evidence for such processes in the mass range m(A⁰) ≤ 9.2 GeV and m(χ) ≤ 4.5 GeV in the sample of 98 × 10⁶ Υ(2S) decays collected with the BABAR detector and set stringent limits on new physics models that contain light dark matter states.
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del Amo Sanchez P, Lees JP, Poireau V, Prencipe E, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Hooberman B, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tanabe T, Hawkes CM, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Khan A, Randle-Conde A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Yushkov AN, Bondioli M, Curry S, Kirkby D, Lankford AJ, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Winstrom LO, Cheng CH, Doll DA, Echenard B, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Dubrovin MS, Mancinelli G, Meadows BT, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Jasper H, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Nicolaci M, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Bhuyan B, Prasad V, Lee CL, Morii M, Adametz A, Marks J, Uwer U, Bernlochner FU, Ebert M, Lacker HM, Lueck T, Volk A, Dauncey PD, Tibbetts M, Behera PK, Mallik U, Chen C, Cochran J, Crawley HB, Dong L, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Perez A, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wang L, Wormser G, Lange DJ, Wright DM, Bingham I, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Anderson J, Cenci R, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Sciolla G, Zhao M, Lindemann D, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kass R, Morris JP, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Feltresi E, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Ben-Haim E, Bonneaud GR, Briand H, Calderini G, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Prendki J, Sitt S, Biasini M, Manoni E, Rossi A, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Renga F, Hartmann T, Leddig T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Santoro V, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Sun S, Suzuki K, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Park W, Purohit MV, White RM, Wilson JR, Sekula SJ, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Guttman N, Soffer A, Lund P, Spanier SM, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Lanceri L, Vitale L, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Latham TE, Puccio EMT, Band HR, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Search for f(J)(2220) in radiative J/ψ decays. PHYSICAL REVIEW LETTERS 2010; 105:172001. [PMID: 21231035 DOI: 10.1103/physrevlett.105.172001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Indexed: 05/30/2023]
Abstract
We present a search for f(J)(2220) production in radiative J/ψ→γf(J)(2220) decays using 460 fb⁻¹ of data collected with the BABAR detector at the SLAC PEP-II e(+)e⁻ collider. The f(J)(2220) is searched for in the decays to K(+)K⁻ and K(S)⁰K(S)⁰. No evidence of this resonance is observed, and 90% confidence level upper limits on the product of the branching fractions for J/ψ→γf(J)(2220) and f(J)(2220)→K(+)K⁻(K(S)⁰K(S)⁰) as a function of spin and helicity are set at the level of 10⁻⁵, below the central values reported by the Mark III experiment.
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del Amo Sanchez P, Lees JP, Poireau V, Prencipe E, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Hooberman B, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tanabe T, Hawkes CM, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Khan A, Randle-Conde A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Yushkov AN, Bondioli M, Curry S, Kirkby D, Lankford AJ, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Winstrom LO, Cheng CH, Doll DA, Echenard B, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Dubrovin MS, Mancinelli G, Meadows BT, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Hirschauer JF, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Nicolaci M, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Bhuyan B, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Lacker HM, Lueck T, Volk A, Dauncey PD, Tibbetts M, Behera PK, Mallik U, Chen C, Cochran J, Crawley HB, Dong L, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Perez A, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wang L, Wormser G, Lange DJ, Wright DM, Bingham I, Burke JP, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Anderson J, Cenci R, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Sciolla G, Zhao M, Lindemann D, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Zhao HW, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kass R, Morris JP, Rahimi AM, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Feltresi E, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Ben-Haim E, Bonneaud GR, Briand H, Calderini G, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Prendki J, Sitt S, Biasini M, Manoni E, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Renga F, Ebert M, Hartmann T, Leddig T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Zito M, Aitchison IJR, Allen MT, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Santoro V, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Sun S, Suzuki K, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Park W, Purohit MV, White RM, Wilson JR, Sekula SJ, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Guttman N, Soffer A, Lund P, Spanier SM, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Lanceri L, Vitale L, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Ilic J, Latham TE, Puccio EMT, Band HR, Chen X, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Evidence for direct CP violation in the measurement of the Cabbibo-Kobayashi-Maskawa angle γ with B∓ → D(*)K(*)∓ decays. PHYSICAL REVIEW LETTERS 2010; 105:121801. [PMID: 20867628 DOI: 10.1103/physrevlett.105.121801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Indexed: 05/29/2023]
Abstract
We report the measurement of the Cabibbo-Kobayashi-Maskawa CP-violating angle γ through a Dalitz plot analysis of neutral D-meson decays to K(S)(0) π+ π- and K(S)(0) K+ K- produced in the processes B∓ → DK∓, B∓ D* K∓ with D* → Dπ(0), Dγ, and B∓ → DK*∓ with K*∓ → K(S)(0) π∓, using 468 million BB pairs collected by the BABAR detector at the PEP-II asymmetric-energy e+ e- collider at SLAC. We measure γ = (68 ± 14 ± 4 ± 3)° (modulo 180°), where the first error is statistical, the second is the experimental systematic uncertainty, and the third reflects the uncertainty in the description of the neutral D decay amplitudes. This result is inconsistent with γ = 0 (no direct CP violation) with a significance of 3.5 standard deviations.
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del Amo Sanchez P, Lees JP, Poireau V, Prencipe E, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Hooberman B, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tanabe T, Hawkes CM, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Khan A, Randle-Conde A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Yushkov AN, Bondioli M, Curry S, Kirkby D, Lankford AJ, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Campagnari C, Hong TM, Kovalskyi D, Richman JD, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Winstrom LO, Cheng CH, Doll DA, Echenard B, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Dubrovin MS, Mancinelli G, Meadows BT, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Hirschauer JF, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Nicolaci M, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Bhuyan B, Lee CL, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Lacker HM, Lueck T, Volk A, Dauncey PD, Tibbetts M, Behera PK, Mallik U, Chen C, Cochran J, Crawley HB, Dong L, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Perez A, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wang L, Wormser G, Lange DJ, Wright DM, Bingham I, Burke JP, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Anderson J, Cenci R, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Sciolla G, Zhao M, Lindemann D, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Zhao HW, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kass R, Morris JP, Rahimi AM, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Feltresi E, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Ben-Haim E, Bonneaud GR, Briand H, Calderini G, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Prendki J, Sitt S, Biasini M, Manoni E, Angelini C, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Cervelli A, Forti F, Giorgi MA, Lusiani A, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Renga F, Ebert M, Hartmann T, Leddig T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Zito M, Aitchison IJR, Allen MT, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Pulliam T, Ratcliff BN, Roodman A, Salnikov AA, Santoro V, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Sun S, Suzuki K, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Park W, Purohit MV, White RM, Wilson JR, Sekula SJ, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Guttman N, Soffer A, Lund P, Spanier SM, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Lanceri L, Vitale L, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Ilic J, Latham TE, Puccio EMT, Band HR, Chen X, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Measurement of D0-D0 mixing parameters using D0 → K(S)(0)π+ π- and D0 → K(S)(0)K+ K- decays. PHYSICAL REVIEW LETTERS 2010; 105:081803. [PMID: 20868092 DOI: 10.1103/physrevlett.105.081803] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Indexed: 05/29/2023]
Abstract
We report a direct measurement of D0-D0 mixing parameters through a time-dependent amplitude analysis of the Dalitz plots of D(0) → K(S)(0) π+ π- and, for the first time, D0 → K(S)(0)K+ K- decays. The low-momentum pion π(s)(+) in the decay D*+ → D0 π(s)(+) identifies the flavor of the neutral D meson at its production. Using 468.5 fb(-1) of e+ e- colliding-beam data recorded near square root(s)=10.6 GeV by the BABAR detector at the PEP-II asymmetric-energy collider at SLAC, we measure the mixing parameters x = [1.6 ± 2.3(stat) ± 1.2(syst) ± 0.8(model)] × 10(-3), and y = [5.7 ± 2.0(stat) ± 1.3(syst) ± 0.7(model)] × 10(-3). These results provide the best measurement to date of x and y. The knowledge of the value of x, in particular, is crucial for understanding the origin of mixing.
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Aubert B, Karyotakis Y, Lees JP, Poireau V, Prencipe E, Prudent X, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tackmann K, Tanabe T, Hawkes CM, Soni N, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Fulsom BG, Hearty C, Mattison TS, McKenna JA, Barrett M, Khan A, Randle-Conde A, Blinov VE, Bukin AD, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Bondioli M, Curry S, Eschrich I, Kirkby D, Lankford AJ, Lund P, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Yasin Z, Sharma V, Campagnari C, Hong TM, Kovalskyi D, Mazur MA, Richman JD, Beck TW, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Wang L, Winstrom LO, Cheng CH, Doll DA, Echenard B, Fang F, Hitlin DG, Narsky I, Ongmongkolkul P, Piatenko T, Porter FC, Andreassen R, Mancinelli G, Meadows BT, Mishra K, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Hirschauer JF, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Wilson RJ, Feltresi E, Hauke A, Jasper H, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Nogowski R, Schubert KR, Schwierz R, Bernard D, Latour E, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Chaisanguanthum KS, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Klose V, Lacker HM, Lueck T, Volk A, Bard DJ, Dauncey PD, Tibbetts M, Behera PK, Charles MJ, Mallik U, Cochran J, Crawley HB, Dong L, Eyges V, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, Béquilleux J, D'Orazio A, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lepeltier V, Lutz AM, Malaescu B, Pruvot S, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wormser G, Lange DJ, Wright DM, Bingham I, Burke JP, Chavez CA, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Clarke CK, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Yi JI, Anderson J, Chen C, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Henderson SW, Sciolla G, Spitznagel M, Yamamoto RK, Zhao M, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Zhao HW, Simard M, Taras P, Nicholson H, De Nardo G, Lista L, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kagan H, Kass R, Morris JP, Rahimi AM, Sekula SJ, Wong QK, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Lu M, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Voci C, Del Amo Sanchez P, Ben-Haim E, Bonneaud GR, Briand H, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Perez A, Prendki J, Sitt S, Gladney L, Biasini M, Manoni E, Angelini C, Batignani G, Bettarini S, Calderini G, Carpinelli M, Cervelli A, Forti F, Giorgi MA, Lusiani A, Morganti M, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Jackson PD, Gioi LL, Mazzoni MA, Morganti S, Piredda G, Renga F, Voena C, Ebert M, Hartmann T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Esteve L, Hamel de Monchenault G, Kozanecki W, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bartoldus R, Benitez JF, Cenci R, Coleman JP, Convery MR, Dingfelder JC, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kaminski J, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, Macfarlane DB, Marsiske H, Messner R, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Suzuki K, Swain SK, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Liu H, Park W, Purohit MV, White RM, Wilson JR, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Soffer A, Spanier SM, Wogsland BJ, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Drummond BW, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Bosisio L, Cartaro C, Della Ricca G, Lanceri L, Vitale L, Azzolini V, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Bhuyan B, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Ilic J, Latham TE, Mohanty GB, Puccio EMT, Band HR, Chen X, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Measurements of charged current lepton universality and |Vus| using tau lepton decays to e- ν(e) ν(τ), μ- ν(μ) ν(τ), π- ν(τ), and K- ν(τ). PHYSICAL REVIEW LETTERS 2010; 105:051602. [PMID: 20867905 DOI: 10.1103/physrevlett.105.051602] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Indexed: 05/29/2023]
Abstract
Using 467 fb(-1) of e+e- annihilation data collected with the BABAR detector, we measure (B(τ- → μ- ν(μ) ν(τ)))/(B(τ- → e- ν(e) ν(τ))) =(0.9796±0.0016±0.0036), (B(τ- → π- ν(τ)))/(B(τ- → e- ν(e) ν(τ))) = (0.5945±0.0014±0.0061), and (B(τ- → K- ν(τ)))/(B(τ- → e- ν(e) ν(τ))) = (0.03882±0.00032±0.00057), where the uncertainties are statistical and systematic, respectively. From these precision τ measurements, we test the standard model assumption of μ-e and τ-μ charge current lepton universality and provide determinations of |Vus| experimentally independent of the decay of a kaon.
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Boylen CW, Shick MO, Roberts DA, Singer R. Microbiological Survey of Adirondack Lakes with Various pH Values. Appl Environ Microbiol 2010; 45:1538-44. [PMID: 16346291 PMCID: PMC242497 DOI: 10.1128/aem.45.5.1538-1544.1983] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Nine high-altitude oligotrophic Adirondack lakes in upstate New York having water of pH 4.3 to 7.0 were surveyed for total bacterial numbers and possible adaptation of the microbial communities to environmental pH. The number of heterotrophic bacteria from water samples recoverable on standard plate count agar were low (10 to 10 per ml) for most of the lakes. Acridine orange direct counts were approximately two orders of magnitude higher than plate counts for each lake. Sediment aerobic heterotrophs recovered on standard plate count agar ranged from 1.4 x 10 to 1.3 x 10 per g of sediment. Direct epifluorescence counts of bacteria in sediment samples ranged from 3.0 x 10 to 1.4 x 10 per g. Low density values were consistent with the oligotrophic nature of all the lakes surveyed. There were no apparent differences in numbers of bacteria originally isolated at pH 5.0 and pH 7.0 between circumneutral lakes (pH > 6.0) and acidic lakes (pH < 5.0). Approximately 1,200 isolates were recultured over a range of pH from 3.0 to 7.0. Regardless of the original isolation pH (pH 5.0 or pH 7.0), less than 10% of the isolates grew at pH < 5.0. Those originally isolated at pH 5.0 also grew at pH 6.0 and 7.0. Those originally isolated at pH 7.0 preferred pH 7.0, with 98% able to grow at pH 6.0 and 44% able to grow at pH 5.0. A chi-square contingency test clearly showed (P < 0.005) that two distinct heterotrophic populations had been originally isolated at pH 5.0 and pH 7.0, although there is undoubtedly some overlap between the two populations.
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del Amo Sanchez P, Lees JP, Poireau V, Prencipe E, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Hooberman B, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tanabe T, Hawkes CM, Soni N, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Khan A, Randle-Conde A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Yushkov AN, Bondioli M, Curry S, Kirkby D, Lankford AJ, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Yasin Z, Sharma V, Campagnari C, Hong TM, Kovalskyi D, Richman JD, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Winstrom LO, Cheng CH, Doll DA, Echenard B, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Dubrovin MS, Mancinelli G, Meadows BT, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Hirschauer JF, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Hauke A, Jasper H, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Nicolaci M, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Bhuyan B, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Lacker HM, Lueck T, Volk A, Dauncey PD, Tibbetts M, Behera PK, Mallik U, Chen C, Cochran J, Crawley HB, Dong L, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lutz AM, Malaescu B, Perez A, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wang L, Wormser G, Lange DJ, Wright DM, Bingham I, Burke JP, Chavez CA, Coleman JP, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Anderson J, Cenci R, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Sciolla G, Yamamoto RK, Zhao M, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Zhao HW, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kass R, Morris JP, Rahimi AM, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Feltresi E, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Ben-Haim E, Bonneaud GR, Briand H, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Prendki J, Sitt S, Biasini M, Manoni E, Angelini C, Batignani G, Bettarini S, Calderini G, Carpinelli M, Cervelli A, Forti F, Giorgi MA, Lusiani A, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni MA, Piredda G, Renga F, Ebert M, Hartmann T, Leddig T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cartaro C, Convery MR, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Ratcliff BN, Roodman A, Salnikov AA, Santoro V, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Suzuki K, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Park W, Purohit MV, White RM, Wilson JR, Sekula SJ, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Guttman N, Soffer A, Lund P, Spanier SM, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Della Ricca G, Lanceri L, Vitale L, Azzolini V, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Ilic J, Latham TE, Mohanty GB, Puccio EMT, Band HR, Chen X, Dasu S, Flood KT, Pan Y, Pierini M, Prepost R, Vuosalo CO, Wu SL. Test of lepton universality in Υ(1S) decays at BABAR. PHYSICAL REVIEW LETTERS 2010; 104:191801. [PMID: 20866959 DOI: 10.1103/physrevlett.104.191801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Indexed: 05/29/2023]
Abstract
The ratio R(τμ)(Υ(1S))=Γ(Υ(1S)→τ+ τ-)/Γ(Υ(1S)→μ+ μ-) is measured using a sample of (121.8±1.2)×10(6)Υ(3S) events recorded by the BABAR detector. This measurement is intended as a test of lepton universality and as a search for a possible light pseudoscalar Higgs boson. In the standard model (SM) this ratio is expected to be close to 1. Any significant deviations would violate lepton universality and could be introduced by the coupling to a light pseudoscalar Higgs boson. The analysis studies the decays Υ(3S)→Υ(1S)π+ π-, Υ(1S)→l+ l-, where l=μ, τ. The result, R(τμ)(Υ(1S))=1.005±0.013(stat)±0.022(syst), shows no deviation from the expected SM value, while improving the precision with respect to previous measurements.
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Lees JP, Poireau V, Prencipe E, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Hooberman B, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tanabe T, Hawkes CM, Soni N, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Barrett M, Khan A, Randle-Conde A, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Yushkov AN, Bondioli M, Curry S, Kirkby D, Lankford AJ, Lund P, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Yasin Z, Sharma V, Campagnari C, Hong TM, Kovalskyi D, Richman JD, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Winstrom LO, Cheng CH, Doll DA, Echenard B, Hitlin DG, Ongmongkolkul P, Porter FC, Rakitin AY, Andreassen R, Dubrovin MS, Mancinelli G, Meadows BT, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Hirschauer JF, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Feltresi E, Hauke A, Jasper H, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Schubert KR, Schwierz R, Bernard D, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Nicolaci M, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Bhuyan B, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Lacker HM, Lueck T, Volk A, Dauncey PD, Tibbetts M, Behera PK, Charles MJ, Mallik U, Chen C, Cochran J, Crawley HB, Dong L, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lepeltier V, Lutz AM, Malaescu B, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wang L, Wormser G, Lange DJ, Wright DM, Bingham I, Burke JP, Chavez CA, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Anderson J, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Henderson SW, Sciolla G, Spitznagel M, Yamamoto RK, Zhao M, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Zhao HW, Nguyen X, Simard M, Taras P, De Nardo G, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kass R, Morris JP, Rahimi AM, Sekula SJ, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Lu M, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, del Amo Sanchez P, Ben-Haim E, Bonneaud GR, Briand H, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Perez A, Prendki J, Sitt S, Biasini M, Manoni E, Angelini C, Batignani G, Bettarini S, Calderini G, Carpinelli M, Cervelli A, Forti F, Giorgi MA, Lusiani A, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Jackson PD, Li Gioi L, Mazzoni MA, Piredda G, Renga F, Ebert M, Hartmann T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Hamel de Monchenault G, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cenci R, Coleman JP, Convery MR, Dingfelder JC, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kaminski J, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Messner R, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Suzuki K, Swain SK, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Liu H, Park W, Purohit MV, White RM, Wilson JR, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Guttman N, Soffer A, Spanier SM, Wogsland BJ, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Drummond BW, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Cartaro C, Della Ricca G, Lanceri L, Vitale L, Azzolini V, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Ilic J, Latham TE, Mohanty GB, Puccio EMT, Band HR, Chen X, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Search for charged lepton flavor violation in narrow upsilon decays. PHYSICAL REVIEW LETTERS 2010; 104:151802. [PMID: 20481982 DOI: 10.1103/physrevlett.104.151802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Indexed: 05/29/2023]
Abstract
Charged-lepton flavor-violating processes are unobservable in the standard model, but they are predicted to be enhanced in several extensions to the standard model, including supersymmetry and models with leptoquarks or compositeness. We present a search for such processes in a sample of 99x10(6)Upsilon(2S) decays and 117x10(6)Upsilon(3S) decays collected with the BABAR detector. We place upper limits on the branching fractions B(Upsilon(nS)-->e(+/-)tau(-/+)) and B(Upsilon(nS)-->mu(+/-)tau(-/+)) (n=2,3) at the 10(-6) level and use these results to place lower limits of order 1 TeV on the mass scale of charged-lepton flavor-violating effective operators.
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Aubert B, Karyotakis Y, Lees JP, Poireau V, Prencipe E, Prudent X, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Hooberman B, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tackmann K, Tanabe T, Hawkes CM, Soni N, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Barrett M, Khan A, Randle-Conde A, Blinov VE, Bukin AD, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Bondioli M, Curry S, Eschrich I, Kirkby D, Lankford AJ, Lund P, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Yasin Z, Sharma V, Campagnari C, Hong TM, Kovalskyi D, Mazur MA, Richman JD, Beck TW, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Wang L, Winstrom LO, Cheng CH, Doll DA, Echenard B, Fang F, Hitlin DG, Narsky I, Ongmongkolkul P, Piatenko T, Porter FC, Andreassen R, Mancinelli G, Meadows BT, Mishra K, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Hirschauer JF, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Feltresi E, Hauke A, Jasper H, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Nogowski R, Schubert KR, Schwierz R, Bernard D, Latour E, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Lacker HM, Lueck T, Volk A, Dauncey PD, Tibbetts M, Behera PK, Charles MJ, Mallik U, Cochran J, Crawley HB, Dong L, Eyges V, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, D'Orazio A, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lepeltier V, Lutz AM, Malaescu B, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wormser G, Lange DJ, Wright DM, Bingham I, Burke JP, Chavez CA, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Clarke CK, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Yi JI, Anderson J, Chen C, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Henderson SW, Sciolla G, Spitznagel M, Yamamoto RK, Zhao M, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Zhao HW, Nguyen X, Simard M, Taras P, Nicholson H, De Nardo G, Lista L, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, Losecco JM, Wang WF, Corwin LA, Honscheid K, Kagan H, Kass R, Morris JP, Rahimi AM, Sekula SJ, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Lu M, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Voci C, Del Amo Sanchez P, Ben-Haim E, Bonneaud GR, Briand H, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Perez A, Prendki J, Sitt S, Gladney L, Biasini M, Manoni E, Angelini C, Batignani G, Bettarini S, Calderini G, Carpinelli M, Cervelli A, Forti F, Giorgi MA, Lusiani A, Morganti M, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Jackson PD, Li Gioi L, Mazzoni MA, Morganti S, Piredda G, Renga F, Voena C, Ebert M, Hartmann T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Esteve L, Hamel de Monchenault G, Kozanecki W, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cenci R, Coleman JP, Convery MR, Dingfelder JC, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kaminski J, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, Macfarlane DB, Marsiske H, Messner R, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Suzuki K, Swain SK, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Liu H, Park W, Purohit MV, White RM, Wilson JR, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Soffer A, Spanier SM, Wogsland BJ, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Drummond BW, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Bosisio L, Cartaro C, Della Ricca G, Lanceri L, Vitale L, Azzolini V, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Bhuyan B, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Lindsay CD, Locke CB, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Ilic J, Latham TE, Mohanty GB, Puccio EMT, Band HR, Chen X, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Searches for Lepton flavor violation in the decays tau{+/-}-->e{+/-}gamma and tau{+/-}-->mu{+/-}gamma. PHYSICAL REVIEW LETTERS 2010; 104:021802. [PMID: 20366586 DOI: 10.1103/physrevlett.104.021802] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Indexed: 05/29/2023]
Abstract
Searches for lepton-flavor-violating decays of a tau lepton to a lighter mass lepton and a photon have been performed with the entire data set of (963+/-7)x10{6} tau decays collected by the BABAR detector near the Upsilon(4S), Upsilon(3S) and Upsilon(2S) resonances. The searches yield no evidence of signals and we set upper limits on the branching fractions of B(tau{+/-}-->e{+/-}gamma)<3.3x10{-8} and B(tau{+/-}-->mu{+/-}gamma)<4.4x10{-8} at 90% confidence level.
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Aubert B, Karyotakis Y, Lees JP, Poireau V, Prencipe E, Prudent X, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tackmann K, Tanabe T, Hawkes CM, Soni N, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Fulsom BG, Hearty C, Mattison TS, McKenna JA, Barrett M, Khan A, Randle-Conde A, Blinov VE, Bukin AD, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Bondioli M, Curry S, Eschrich I, Kirkby D, Lankford AJ, Lund P, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Yasin Z, Zhang L, Sharma V, Campagnari C, Hong TM, Kovalskyi D, Mazur MA, Richman JD, Beck TW, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Wang L, Winstrom LO, Cheng CH, Doll DA, Echenard B, Fang F, Hitlin DG, Narsky I, Piatenko T, Porter FC, Andreassen R, Mancinelli G, Meadows BT, Mishra K, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Hirschauer JF, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Wilson RJ, Feltresi E, Hauke A, Jasper H, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Nogowski R, Schubert KR, Schwierz R, Volk A, Bernard D, Latour E, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Chaisanguanthum KS, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Klose V, Lacker HM, Bard DJ, Dauncey PD, Tibbetts M, Behera PK, Charles MJ, Mallik U, Cochran J, Crawley HB, Dong L, Eyges V, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, Béquilleux J, D'Orazio A, Davier M, Derkach D, da Costa JF, Grosdidier G, Le Diberder F, Lepeltier V, Lutz AM, Malaescu B, Pruvot S, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wormser G, Lange DJ, Wright DM, Bingham I, Burke JP, Chavez CA, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Clarke CK, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Yi JI, Anderson J, Chen C, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Saremi S, Cowan R, Dujmic D, Fisher PH, Henderson SW, Sciolla G, Spitznagel M, Yamamoto RK, Zhao M, Patel PM, Robertson SH, Schram M, Lazzaro A, Lombardo V, Palombo F, Stracka S, Bauer JM, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Zhao HW, Simard M, Taras P, Nicholson H, De Nardo G, Lista L, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kagan H, Kass R, Morris JP, Rahimi AM, Regensburger JJ, Sekula SJ, Wong QK, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Lu M, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Voci C, Sanchez PDA, Ben-Haim E, Bonneaud GR, Briand H, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Perez A, Prendki J, Sitt S, Gladney L, Biasini M, Manoni E, Angelini C, Batignani G, Bettarini S, Calderini G, Carpinelli M, Cervelli A, Forti F, Giorgi MA, Lusiani A, Morganti M, Neri N, Paoloni E, Rizzo G, Walsh JJ, Pegna DL, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Jackson PD, Gioi LL, Mazzoni MA, Morganti S, Piredda G, Renga F, Voena C, Ebert M, Hartmann T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Esteve L, de Monchenault GH, Kozanecki W, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bartoldus R, Benitez JF, Cenci R, Coleman JP, Convery MR, Dingfelder JC, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Sevilla MF, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kaminski J, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Messner R, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Suzuki K, Swain SK, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Liu H, Park W, Purohit MV, White RM, Wilson JR, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Soffer A, Spanier SM, Wogsland BJ, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Drummond BW, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Bosisio L, Cartaro C, Della Ricca G, Lanceri L, Vitale L, Azzolini V, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Bhuyan B, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Ilic J, Latham TE, Mohanty GB, Puccio EMT, Band HR, Chen X, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Measurement of |V(cb)| and the form-factor slope in B --> Dl- nu(l) decays in events tagged by a fully reconstructed B meson. PHYSICAL REVIEW LETTERS 2010; 104:011802. [PMID: 20366358 DOI: 10.1103/physrevlett.104.011802] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Indexed: 05/29/2023]
Abstract
We present a measurement of the Cabibbo-Kobayashi-Maskawa matrix element |V(cb)| and the form-factor slope rho2 in B --> Dl- nu(l) decays based on 460x10(6) BB events recorded at the Upsilon(4S) resonance with the BABAR detector. B --> Dl- nu(l) decays are selected in events in which a hadronic decay of the second B meson is fully reconstructed. We measure B(B- --> D0 l- nu(l))/B(B- --> Xl- nu(l)) = (0.255+/-0.009+/-0.009) and B(B0 --> D+ l- nu(l))/B(B0 --> Xl- nu(l)) = (0.230+/-0.011+/-0.011), along with the differential decay distribution in B --> Dl- nu(l) decays. We then determine G(1)|V(cb)| = (42.3+/-1.9+/-1.4)x10(-3) and rho2 = 1.20+/-0.09+/-0.04, where G(1) is the hadronic form factor at the point of zero recoil.
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Aubert B, Karyotakis Y, Lees JP, Poireau V, Prencipe E, Prudent X, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Hooberman B, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tackmann K, Tanabe T, Hawkes CM, Soni N, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Barrett M, Khan A, Randle-Conde A, Blinov VE, Bukin AD, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Bondioli M, Curry S, Eschrich I, Kirkby D, Lankford AJ, Lund P, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Yasin Z, Sharma V, Campagnari C, Hong TM, Kovalskyi D, Mazur MA, Richman JD, Beck TW, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Wang L, Winstrom LO, Cheng CH, Doll DA, Echenard B, Fang F, Hitlin DG, Narsky I, Ongmongkolkul P, Piatenko T, Porter FC, Andreassen R, Mancinelli G, Meadows BT, Mishra K, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Hirschauer JF, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Wilson RJ, Feltresi E, Hauke A, Jasper H, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Nogowski R, Schubert KR, Schwierz R, Bernard D, Latour E, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Chaisanguanthum KS, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Klose V, Lacker HM, Lueck T, Volk A, Bard DJ, Dauncey PD, Tibbetts M, Behera PK, Charles MJ, Mallik U, Cochran J, Crawley HB, Dong L, Eyges V, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, Béquilleux J, D'Orazio A, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lepeltier V, Lutz AM, Malaescu B, Pruvot S, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wormser G, Lange DJ, Wright DM, Bingham I, Burke JP, Chavez CA, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Clarke CK, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Denig AG, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Yi JI, Anderson J, Chen C, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Henderson SW, Sciolla G, Spitznagel M, Yamamoto RK, Zhao M, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Zhao HW, Simard M, Taras P, Nicholson H, De Nardo G, Lista L, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kagan H, Kass R, Morris JP, Rahimi AM, Sekula SJ, Wong QK, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Lu M, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Voci C, del Amo Sanchez P, Ben-Haim E, Bonneaud GR, Briand H, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Perez A, Prendki J, Sitt S, Gladney L, Biasini M, Manoni E, Angelini C, Batignani G, Bettarini S, Calderini G, Carpinelli M, Cervelli A, Forti F, Giorgi MA, Lusiani A, Morganti M, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Jackson PD, Li Gioi L, Mazzoni MA, Morganti S, Piredda G, Renga F, Voena C, Ebert M, Hartmann T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Esteve L, Hamel de Monchenault G, Kozanecki W, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bartoldus R, Benitez JF, Cenci R, Coleman JP, Convery MR, Dingfelder JC, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kaminski J, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Messner R, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Suzuki K, Swain SK, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Liu H, Park W, Purohit MV, White RM, Wilson JR, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Soffer A, Spanier SM, Wogsland BJ, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Drummond BW, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Bosisio L, Cartaro C, Della Ricca G, Lanceri L, Vitale L, Azzolini V, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Bhuyan B, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Ilic J, Latham TE, Mohanty GB, Puccio EMT, Band HR, Chen X, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Search for invisible decays of the Upsilon(1S). PHYSICAL REVIEW LETTERS 2009; 103:251801. [PMID: 20366249 DOI: 10.1103/physrevlett.103.251801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Indexed: 05/29/2023]
Abstract
We search for invisible decays of the Upsilon(1S) meson using a sample of 91.4 x 10(6) Upsilon(3S) mesons collected at the BABAR/PEP-II B factory. We select events containing the decay Upsilon(3S) --> pi(+)pi(-)Upsilon(1S) and search for evidence of an undetectable Upsilon(1S) decay recoiling against the dipion system. We set an upper limit on the branching fraction B(Upsilon(1S) --> invisible) < 3.0 x 10(-4) at the 90% confidence level.
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Aubert B, Karyotakis Y, Lees JP, Poireau V, Prencipe E, Prudent X, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Hooberman B, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tackmann K, Tanabe T, Hawkes CM, Soni N, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Hearty C, Mattison TS, McKenna JA, Barrett M, Khan A, Randle-Conde A, Blinov VE, Bukin AD, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Bondioli M, Curry S, Eschrich I, Kirkby D, Lankford AJ, Lund P, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Yasin Z, Sharma V, Campagnari C, Hong TM, Kovalskyi D, Mazur MA, Richman JD, Beck TW, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Wang L, Winstrom LO, Cheng CH, Doll DA, Echenard B, Fang F, Hitlin DG, Narsky I, Ongmongkolkul P, Piatenko T, Porter FC, Andreassen R, Mancinelli G, Meadows BT, Mishra K, Sokoloff MD, Bloom PC, Ford WT, Gaz A, Hirschauer JF, Nagel M, Nauenberg U, Smith JG, Wagner SR, Ayad R, Toki WH, Feltresi E, Hauke A, Jasper H, Karbach TM, Merkel J, Petzold A, Spaan B, Wacker K, Kobel MJ, Nogowski R, Schubert KR, Schwierz R, Bernard D, Latour E, Verderi M, Clark PJ, Playfer S, Watson JE, Andreotti M, Bettoni D, Bozzi C, Calabrese R, Cecchi A, Cibinetto G, Fioravanti E, Franchini P, Luppi E, Munerato M, Negrini M, Petrella A, Piemontese L, Santoro V, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Pacetti S, Patteri P, Peruzzi IM, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge MR, Passaggio S, Patrignani C, Robutti E, Tosi S, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner FU, Lacker HM, Lueck T, Volk A, Dauncey PD, Tibbetts M, Behera PK, Charles MJ, Mallik U, Cochran J, Crawley HB, Dong L, Eyges V, Meyer WT, Prell S, Rosenberg EI, Rubin AE, Gao YY, Gritsan AV, Guo ZJ, Arnaud N, D'Orazio A, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lepeltier V, Lutz AM, Malaescu B, Roudeau P, Schune MH, Serrano J, Sordini V, Stocchi A, Wang LL, Wormser G, Lange DJ, Wright DM, Bingham I, Burke JP, Chavez CA, Fry JR, Gabathuler E, Gamet R, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Clarke CK, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren AC, Brown DN, Davis CL, Fritsch M, Gradl W, Hafner A, Alwyn KE, Bailey D, Barlow RJ, Jackson G, Lafferty GD, West TJ, Yi JI, Anderson J, Chen C, Jawahery A, Roberts DA, Simi G, Tuggle JM, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher PH, Henderson SW, Sciolla G, Spitznagel M, Yamamoto RK, Zhao M, Patel PM, Robertson SH, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers DJ, Zhao HW, Nguyen X, Simard M, Taras P, Nicholson H, De Nardo G, Lista L, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek HL, Jessop CP, Knoepfel KJ, LoSecco JM, Wang WF, Corwin LA, Honscheid K, Kagan H, Kass R, Morris JP, Rahimi AM, Sekula SJ, Blount NL, Brau J, Frey R, Igonkina O, Kolb JA, Lu M, Rahmat R, Sinev NB, Strom D, Strube J, Torrence E, Castelli G, Gagliardi N, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Voci C, del Amo Sanchez P, Ben-Haim E, Bonneaud GR, Briand H, Chauveau J, Hamon O, Leruste P, Marchiori G, Ocariz J, Perez A, Prendki J, Sitt S, Gladney L, Biasini M, Manoni E, Angelini C, Batignani G, Bettarini S, Calderini G, Carpinelli M, Cervelli A, Forti F, Giorgi MA, Lusiani A, Morganti M, Neri N, Paoloni E, Rizzo G, Walsh JJ, Lopes Pegna D, Lu C, Olsen J, Smith AJS, Telnov AV, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Jackson PD, Li Gioi L, Mazzoni MA, Morganti S, Piredda G, Renga F, Voena C, Ebert M, Hartmann T, Schröder H, Waldi R, Adye T, Franek B, Olaiya EO, Wilson FF, Emery S, Esteve L, Hamel de Monchenault G, Kozanecki W, Vasseur G, Yèche C, Zito M, Allen MT, Aston D, Bard DJ, Bartoldus R, Benitez JF, Cenci R, Coleman JP, Convery MR, Dingfelder JC, Dorfan J, Dubois-Felsmann GP, Dunwoodie W, Field RC, Franco Sevilla M, Fulsom BG, Gabareen AM, Graham MT, Grenier P, Hast C, Innes WR, Kaminski J, Kelsey MH, Kim H, Kim P, Kocian ML, Leith DWGS, Li S, Lindquist B, Luitz S, Luth V, Lynch HL, MacFarlane DB, Marsiske H, Messner R, Muller DR, Neal H, Nelson S, O'Grady CP, Ofte I, Perl M, Ratcliff BN, Roodman A, Salnikov AA, Schindler RH, Schwiening J, Snyder A, Su D, Sullivan MK, Suzuki K, Swain SK, Thompson JM, Va'vra J, Wagner AP, Weaver M, West CA, Wisniewski WJ, Wittgen M, Wright DH, Wulsin HW, Yarritu AK, Young CC, Ziegler V, Chen XR, Liu H, Park W, Purohit MV, White RM, Wilson JR, Bellis M, Burchat PR, Edwards AJ, Miyashita TS, Ahmed S, Alam MS, Ernst JA, Pan B, Saeed MA, Zain SB, Soffer A, Spanier SM, Wogsland BJ, Eckmann R, Ritchie JL, Ruland AM, Schilling CJ, Schwitters RF, Wray BC, Drummond BW, Izen JM, Lou XC, Bianchi F, Gamba D, Pelliccioni M, Bomben M, Bosisio L, Cartaro C, Della Ricca G, Lanceri L, Vitale L, Azzolini V, Lopez-March N, Martinez-Vidal F, Milanes DA, Oyanguren A, Albert J, Banerjee S, Bhuyan B, Choi HHF, Hamano K, King GJ, Kowalewski R, Lewczuk MJ, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Ilic J, Latham TE, Mohanty GB, Puccio EMT, Band HR, Chen X, Dasu S, Flood KT, Pan Y, Prepost R, Vuosalo CO, Wu SL. Precise measurement of the e+e- --> pi+pi-(gamma) cross section with the initial state radiation method at BABAR. PHYSICAL REVIEW LETTERS 2009; 103:231801. [PMID: 20366141 DOI: 10.1103/physrevlett.103.231801] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Indexed: 05/29/2023]
Abstract
A precise measurement of the cross section of the process e(+)e(-) --> pi(+)pi(-)(gamma) from threshold to an energy of 3 GeV is obtained with the initial state radiation (ISR) method using 232 fb(-1) of data collected with the BABAR detector at e(+)e(-) center-of-mass energies near 10.6 GeV. The ISR luminosity is determined from a study of the leptonic process e(+)e(-) --> mu(+)mu(-)gamma(gamma). The leading-order hadronic contribution to the muon magnetic anomaly calculated using the pipi cross section measured from threshold to 1.8 GeV is (514.1 +/- 2.2(stat) +/- 3.1(syst)) x 10(-10).
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Aubert B, Karyotakis Y, Lees JP, Poireau V, Prencipe E, Prudent X, Tisserand V, Garra Tico J, Grauges E, Martinelli M, Palano A, Pappagallo M, Eigen G, Stugu B, Sun L, Battaglia M, Brown DN, Kerth LT, Kolomensky YG, Lynch G, Osipenkov IL, Tackmann K, Tanabe T, Hawkes CM, Soni N, Watson AT, Koch H, Schroeder T, Asgeirsson DJ, Fulsom BG, Hearty C, Mattison TS, McKenna JA, Barrett M, Khan A, Randle-Conde A, Blinov VE, Bukin AD, Buzykaev AR, Druzhinin VP, Golubev VB, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Bondioli M, Curry S, Eschrich I, Kirkby D, Lankford AJ, Lund P, Mandelkern M, Martin EC, Stoker DP, Atmacan H, Gary JW, Liu F, Long O, Vitug GM, Yasin Z, Zhang L, Sharma V, Campagnari C, Hong TM, Kovalskyi D, Mazur MA, Richman JD, Beck TW, Eisner AM, Heusch CA, Kroseberg J, Lockman WS, Martinez AJ, Schalk T, Schumm BA, Seiden A, Wang L, Winstrom LO, Cheng CH, Doll DA, Echenard B, Fang F, Hitlin DG, Narsky I, Piatenko T, Porter FC, Andreassen R, Mancinelli G, 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Measurement of B-->K{*}(892)gamma branching fractions and CP and Isospin asymmetries. PHYSICAL REVIEW LETTERS 2009; 103:211802. [PMID: 20366028 DOI: 10.1103/physrevlett.103.211802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2009] [Indexed: 05/29/2023]
Abstract
We present an analysis of the decays B{0}-->K{*0}(892)gamma and B{+}-->K{*+}(892)gamma using a sample of about 383 x 10{6} BB[-over ] events collected with the BABAR detector at the PEP-II asymmetric energy B factory. We measure the branching fractions B(B{0}-->K{*0}gamma)=(4.47+/-0.10+/-0.16) x 10{-5} and B(B{+}-->K{*+}gamma)=(4.22+/-0.14+/-0.16) x 10{-5}. We constrain the direct CP asymmetry to be -0.033<A(B-->K{*}gamma)<0.028 and the isospin asymmetry to be 0.017<Delta{0-} < 0.116, where the limits are determined by the 90% confidence interval and include both the statistical and systematic uncertainties.
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