Search for Di-Muon Decays of a Low-Mass Higgs Boson in Radiative Decays of Theυ(1s)
J. P. Lees,V. Poireau,V. Tisserand,J. Garra Tico,E. Grauges,A. Palano,G. Eigen,B. Stugu,D. N. Brown,L. T. Kerth,Yu. G. Kolomensky,G. Lynch,H. Koch,T. Schroeder,D. J. Asgeirsson,C. Hearty,T. S. Mattison,J. A. McKenna,R. Y. So,A. Khan,V. E. Blinov,A. R. Buzykaev,V. P. Druzhinin,V. B. Golubev,E. A. Kravchenko,A. P. Onuchin,S. I. Serednyakov,Yu. I. Skovpen,E. P. Solodov,K. Yu. Todyshev,A. N. Yushkov,M. Bondioli,D. Kirkby,A. J. Lankford,M. Mandelkern,H. Atmacan,J. W. Gary,F. Liu,O. Long,G. M. Vitug,C. Campagnari,T. M. Hong,D. Kovalskyi,J. D. Richman,C. A. West,A. M. Eisner,J. Kroseberg,W. S. Lockman,A. J. Martinez,B. A. Schumm,A. Seiden,D. S. Chao,C. H. Cheng,B. Echenard,K. T. Flood,D. G. Hitlin,P. Ongmongkolkul,F. C. Porter,A. Y. Rakitin,R. Andreassen,Z. Huard,B. T. Meadows,M. D. Sokoloff,L. Sun,P. C. Bloom,W. T. Ford,A. Gaz,U. Nauenberg,J. G. Smith,S. R. Wagner,R. Ayad,W. H. Toki,B. Spaan,K. R. Schubert,R. Schwierz,D. Bernard,M. Verderi,P. J. Clark,S. Playfer,D. Bettoni,C. Bozzi,R. Calabrese,G. Cibinetto,E. Fioravanti,I. Garzia,E. Luppi,L. Piemontese,V. Santoro,R. Baldini-Ferroli,A. Calcaterra,R. de Sangro,G. Finocchiaro,P. Patteri,I. M. Peruzzi,M. Piccolo,M. Rama,A. Zallo,R. Contri,E. Guido,M. Lo Vetere,M. R. Monge,S. Passaggio,C. Patrignani,E. Robutti,B. Bhuyan,V. Prasad,C. L. Lee,M. Morii,A. J. Edwards,A. Adametz,U. Uwer,H. M. Lacker,T. Lueck,P. D. Dauncey,U. Mallik,C. Chen,J. Cochran,W. T. Meyer,S. Prell,A. E. Rubin,A. V. Gritsan,Z. J. Guo,N. Arnaud,M. Davier,D. Derkach,G. Grosdidier,F. Le Diberder,A. M. Lutz,B. Malaescu,P. Roudeau,M. H. Schune,A. Stocchi,G. Wormser,D. J. Lange,D. M. Wright,C. A. Chavez,J. P. Coleman,J. R. Fry,E. Gabathuler,D. E. Hutchcroft,D. J. Payne,C. Touramanis,A. J. Bevan,F. Di Lodovico,R. Sacco,M. Sigamani,G. Cowan,C. L. Davis,A. G. Denig,M. Fritsch,W. Gradl,K. Griessinger,A. Hafner,E. Prencipe,R. J. Barlow,G. Jackson,G. D. Lafferty,E. Behn,R. Cenci,B. Hamilton,A. Jawahery,D. A. Roberts,C. Dallapiccola,R. Cowan,D. Dujmic,G. Sciolla,R. Cheaib,D. Lindemann,P. M. Patel,S. H. Robertson,P. Biassoni,N. Neri,F. Palombo,S. Stracka,L. Cremaldi,R. Godang,R. Kroeger,P. Sonnek,D. J. Summers,X. Nguyen,M. Simard,P. Taras,G. De Nardo,D. Monorchio,G. Onorato,C. Sciacca,M. Martinelli,G. Raven,C. P. Jessop,J. M. LoSecco,W. F. Wang,K. Honscheid,R. Kass,J. Brau,R. Frey,N. B. Sinev,D. Strom,E. Torrence,E. Feltresi,N. Gagliardi,M. Margoni,M. Morandin,M. Posocco,M. Rotondo,G. Simi,F. Simonetto,R. Stroili,S. Akar,E. Ben-Haim,M. Bomben,G. R. Bonneaud,H. Briand,G. Calderini,J. Chauveau,O. Hamon,Ph. Leruste,G. Marchiori,J. Ocariz,S. Sitt,M. Biasini,E. Manoni,S. Pacetti,A. Rossi,C. Angelini,G. Batignani,S. Bettarini,M. Carpinelli,G. Casarosa,A. Cervelli,F. Forti,M. A. Giorgi,A. Lusiani,B. Oberhof,E. Paoloni,A. Perez,G. Rizzo,J. J. Walsh,D. Lopes Pegna,J. Olsen,A. J. S. Smith,F. Anulli,R. Faccini,F. Ferrarotto,F. Ferroni,M. Gaspero,L. Li Gioi,M. A. Mazzoni,G. Piredda,C. Buenger,O. Gruenberg,T. Hartmann,T. Leddig,C. Voss,R. Waldi,T. Adye,E. O. Olaiya,F. F. Wilson,S. Emery,G. Hamel de Monchenault,G. Vasseur,Ch. Yeche,D. Aston,D. J. Bard,R. Bartoldus,J. F. Benitez,C. Cartaro,M. R. Convery,J. Dorfan,G. P. Dubois-Felsmann,W. Dunwoodie,M. Ebert,R. C. Field,M. Franco Sevilla,B. G. Fulsom,A. M. Gabareen,M. T. Graham,P. Grenier,C. Hast,W. R. Innes,M. H. Kelsey,P. Kim,M. L. Kocian,D. W. G. S. Leith,P. Lewis,B. Lindquist,S. Luitz,V. Luth,H. L. Lynch,D. B. MacFarlane,D. R. Muller,H. Neal,S. Nelson,M. Perl,T. Pulliam,B. N. Ratcliff,A. Roodman,A. A. Salnikov,R. H. Schindler,A. Snyder,D. Su,M. K. Sullivan,J. Va'vra,A. P. Wagner,W. J. Wisniewski,M. Wittgen,D. H. Wright,H. W. Wulsin,C. C. Young,V. Ziegler,W. Park,M. V. Purohit,R. M. White,J. R. Wilson,A. Randle-Conde,S. J. Sekula,M. Bellis,P. R. Burchat,T. S. Miyashita,E. M. T. Puccio,M. S. Alam,J. A. Ernst,R. Gorodeisky,N. Guttman,D. R. Peimer,A. Soffer,S. M. Spanier,J. L. Ritchie,A. M. Ruland,R. F. Schwitters,B. C. Wray,J. M. Izen,X. C. Lou,F. Bianchi,D. Gamba,S. Zambito,L. Lanceri,L. Vitale,F. Martinez-Vidal,A. Oyanguren,P. Villanueva-Perez,H. Ahmed,J. Albert,Sw. Banerjee,F. U. Bernlochner,H. H. F. Choi,G. J. King,R. Kowalewski,M. J. Lewczuk,I. M. Nugent,J. M. Roney,R. J. Sobie,N. Tasneem,T. J. Gershon,P. F. Harrison,T. E. Latham,H. R. Band,S. Dasu,Y. Pan,R. Prepost,S. L. Wu
APS（2013）
引用36|浏览5
暂无评分
摘要
We search for di-muon decays of a low-mass Higgs boson (A^0) produced in radiative \Upsilon(1S) decays. The \Upsilon(1S) sample is selected by tagging the pion pair in the \Upsilon(2S, 3S) \to \pi^+ \pi^- \Upsilon(1S) transitions, using a data sample of 92.8 \times 10^6 \Upsilon(2S) and 116.8 \times 10^6 \Upsilon(3S) events collected by the \babar\ detector. We find no evidence for A^0 production and set 90% confidence level upper limits on the product branching fraction \mathcal{B} (\Upsilon(1S) \to \gamma A^0) \times \mathcal{B} (A^0 \to \mumu) in the range of (0.28 - 9.7) \times 10^{-6} for 0.212 \le m_{A^0} \le 9.20 GeV/c^2. The results are combined with our previous measurements of \Upsilon(2S,3S) \to \gamma A^0, A^0 \to \mumu to set limits on the effective coupling of the \b-quark to the A^0.
