在辐射跃迁 Υ→γA₀ 中寻找轻标量玻色子的双μ子衰变。
Search for dimuon decays of a light scalar boson in radiative transitions Upsilon-->gammaA0.
作者信息
Aubert B, Karyotakis Y, Lees J P, 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 D N, Kerth L T, Kolomensky Yu G, Lynch G, Osipenkov I L, Petigura E, Tackmann K, Tanabe T, Hawkes C M, Soni N, Watson A T, Koch H, Schroeder T, Asgeirsson D J, Fulsom B G, Hearty C, Mattison T S, McKenna J A, Barrett M, Khan A, Randle-Conde A, Blinov V E, Bukin A D, Buzykaev A R, Druzhinin V P, Golubev V B, Onuchin A P, Serednyakov S I, Skovpen Yu I, Solodov E P, Todyshev K Yu, Bondioli M, Curry S, Eschrich I, Kirkby D, Lankford A J, Lund P, Mandelkern M, Martin E C, Stoker D P, Atmacan H, Gary J W, Liu F, Long O, Vitug G M, Yasin Z, Sharma V, Campagnari C, Hong T M, Kovalskyi D, Mazur M A, Richman J D, Beck T W, Eisner A M, Heusch C A, Kroseberg J, Lockman W S, Martinez A J, Schalk T, Schumm B A, Seiden A, Wang L, Winstrom L O, Cheng C H, Doll D A, Echenard B, Fang F, Hitlin D G, Narsky I, Ongmongkolku P, Piatenko T, Porter F C, Andreassen R, Mancinelli G, Meadows B T, Mishra K, Sokoloff M D, Bloom P C, Ford W T, Gaz A, Hirschauer J F, Nagel M, Nauenberg U, Smith J G, Wagner S R, Ayad R, Toki W H, Wilson R J, Feltresi E, Hauke A, Jasper H, Karbach T M, Merkel J, Petzold A, Spaan B, Wacker K, Kobel M J, Nogowski R, Schubert K R, Schwierz R, Volk A, Bernard D, Latour E, Verderi M, Clark P J, Playfer S, Watson J E, 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 I M, Piccolo M, Rama M, Zallo A, Contri R, Guido E, Lo Vetere M, Monge M R, Passaggio S, Patrignani C, Robutti E, Tosi S, Chaisanguanthum K S, Morii M, Adametz A, Marks J, Schenk S, Uwer U, Bernlochner F U, Klose V, Lacker H M, Bard D J, Dauncey P D, Tibbetts M, Behera P K, Charles M J, Mallik U, Cochran J, Crawley H B, Dong L, Eyges V, Meyer W T, Prell S, Rosenberg E I, Rubin A E, Gao Y Y, Gritsan A V, Guo Z J, Arnaud N, Béquilleux J, D'Orazio A, Davier M, Derkach D, Firmino da Costa J, Grosdidier G, Le Diberder F, Lepeltier V, Lutz A M, Malaescu B, Pruvot S, Roudeau P, Schune M H, Serrano J, Sordini V, Stocchi A, Wormser G, Lange D J, Wright D M, Bingham I, Burke J P, Chavez C A, Fry J R, Gabathuler E, Gamet R, Hutchcroft D E, Payne D J, Touramanis C, Bevan A J, Clarke C K, Di Lodovico F, Sacco R, Sigamani M, Cowan G, Paramesvaran S, Wren A C, Brown D N, Davis C L, Denig A G, Fritsch M, Gradl W, Hafner A, Alwyn K E, Bailey D, Barlow R J, Jackson G, Lafferty G D, West T J, Yi J I, Anderson J, Chen C, Jawahery A, Roberts D A, Simi G, Tuggle J M, Dallapiccola C, Salvati E, Cowan R, Dujmic D, Fisher P H, Henderson S W, Sciolla G, Spitznagel M, Yamamoto R K, Zhao M, Patel P M, Robertson S H, Schram M, Biassoni P, Lazzaro A, Lombardo V, Palombo F, Stracka S, Bauer J M, Cremaldi L, Godang R, Kroeger R, Sonnek P, Summers D J, Zhao H W, Simard M, Taras P, Nicholson H, De Nardo G, Lista L, Monorchio D, Onorato G, Sciacca C, Raven G, Snoek H L, Jessop C P, Knoepfel K J, LoSecco J M, Wang W F, Corwin L A, Honscheid K, Kagan H, Kass R, Morris J P, Rahimi A M, Regensburger J J, Sekula S J, Wong Q K, Blount N L, Brau J, Frey R, Igonkina O, Kolb J A, Lu M, Rahmat R, Sinev N B, 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 G R, Briand H, Chauveau J, Hamon O, Leruste Ph, 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 M A, Lusiani A, Morganti M, Neri N, Paoloni E, Rizzo G, Walsh J J, Lopes Pegna D, Lu C, Olsen J, Smith A J S, Telnov A V, Anulli F, Baracchini E, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Jackson P D, Li Gioi L, Mazzoni M A, Morganti S, Piredda G, Renga F, Voena C, Ebert M, Hartmann T, Schröder H, Waldi R, Adye T, Franek B, Olaiya E O, Wilson F F, Emery S, Esteve L, Hamel de Monchenault G, Kozanecki W, Vasseur G, Yèche Ch, Zito M, Allen M T, Aston D, Bartoldus R, Benitez J F, Cenci R, Coleman J P, Convery M R, Dingfelder J C, Dorfan J, Dubois-Felsmann G P, Dunwoodie W, Field R C, Franco Sevilla M, Gabareen A M, Graham M T, Grenier P, Hast C, Innes W R, Kaminski J, Kelsey M H, Kim H, Kim P, Kocian M L, Leith D W G S, Li S, Lindquist B, Luitz S, Luth V, Lynch H L, MacFarlane D B, Marsiske H, Messner R, Muller D R, Neal H, Nelson S, O'Grady C P, Ofte I, Perl M, Ratcliff B N, Roodman A, Salnikov A A, Schindler R H, Schwiening J, Snyder A, Su D, Sullivan M K, Suzuki K, Swain S K, Thompson J M, Va'vra J, Wagner A P, Weaver M, West C A, Wisniewski W J, Wittgen M, Wright D H, Wulsin H W, Yarritu A K, Young C C, Ziegler V, Chen X R, Liu H, Park W, Purohit M V, White R M, Wilson J R, Burchat P R, Edwards A J, Miyashita T S, Ahmed S, Alam M S, Ernst J A, Pan B, Saeed M A, Zain S B, Soffer A, Spanier S M, Wogsland B J, Eckmann R, Ritchie J L, Ruland A M, Schilling C J, Schwitters R F, Wray B C, Drummond B W, Izen J M, Lou X C, 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 D A, Oyanguren A, Albert J, Banerjee Sw, Bhuyan B, Choi H H F, Hamano K, King G J, Kowalewski R, Lewczuk M J, Nugent I M, Roney J M, Sobie R J, Gershon T J, Harrison P F, Ilic J, Latham T E, Mohanty G B, Puccio E M T, Band H R, Chen X, Dasu S, Flood K T, Pan Y, Prepost R, Vuosalo C O, Wu S L
机构信息
Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France.
出版信息
Phys Rev Lett. 2009 Aug 21;103(8):081803. doi: 10.1103/PhysRevLett.103.081803. Epub 2009 Aug 18.
We search for evidence of a light scalar boson in the radiative decays of the Upsilon(2S) and Upsilon(3S) resonances: Upsilon(2S,3S)-->gammaA0, A0-->mu+mu-. Such a particle appears in extensions of the standard model, where a light CP-odd Higgs boson naturally couples strongly to b quarks. We find no evidence for such processes in the mass range 0.212 < or = mA0 < or = 9.3 GeV in the samples of 99 x 10(6) Upsilon(2S) and 122 x 10(6) Upsilon(3S) decays collected by the BABAR detector at the SLAC PEP-II B factory and set stringent upper limits on the effective coupling of the b quark to the A0. We also limit the dimuon branching fraction of the etab meson: B(etab-->mu+mu-)<0.9% at 90% confidence level.
我们在Υ(2S)和Υ(3S)共振态的辐射衰变过程中寻找轻标量玻色子的证据：Υ(2S,3S)→γA0，A0→μ+μ-。这样的粒子出现在标准模型的扩展理论中，其中一个轻的CP奇异希格斯玻色子自然地与b夸克强烈耦合。在SLAC的PEP-II B工厂的BABAR探测器收集的99×10⁶次Υ(2S)衰变和122×10⁶次Υ(3S)衰变样本中，我们在0.212≤mA0≤9.3 GeV的质量范围内未找到此类过程的证据，并对b夸克与A0的有效耦合设定了严格的上限。我们还限制了ηb介子的双μ子分支比：在90%置信水平下，B(ηb→μ+μ-)<0.9%。
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