Decays in pp Collisions at ffiffi s p 1⁄4 7 TeV

G. Williams, N. Adam,E. Berry,P. Elmer,D. Gerbaudo,V. Halyo,P. Hebda,A. Hunt,E. Laird,D. Lopes Pegna,D. Marlow,T. Medvedeva,M. Mooney,J. Olsen,P. Piroué,X. Quan, B. Safdi,H. Saka,D. Stickland,C. Tully,J. S. Werner,A. Zuranski,J. G. Acosta,X. T. Huang,A. Lopez,H. Mendez,S. Oliveros,J. E. Ramirez Vargas, A. Zatserklyaniy,E. Alagoz,V. E. Barnes,G. Bolla,L. Borrello,D. Bortoletto,M. De Mattia, A. Everett,A. F. Garfinkel,L. Gutay,Z. Hu,M. Jones,O. Koybasi,M. Kress,A. T. Laasanen,N. Leonardo,C. Liu,V. Maroussov,P. Merkel,D. H. Miller,N. Neumeister,I. Shipsey,D. Silvers,A. Svyatkovskiy,H. D. Yoo,J. Zablocki,Y. Zheng, S. Guragain,N. Parashar,A. Adair,C. Boulahouache,K. M. Ecklund,F. J. M. Geurts,B. P. Padley,R. Redjimi,J. Roberts,J. Zabel,B. Betchart,A. Bodek,Y. S. Chung,R. Covarelli,P. de Barbaro,R. Demina,Y. Eshaq,H. Flacher,A. Garcia-Bellido,P. Goldenzweig,Y. Gotra,J. Han,A. Harel,D. C. Miner, D. Orbaker,G. Petrillo,W. Sakumoto,D. Vishnevskiy,M. Zielinski,A. Bhatti,R. Ciesielski,L. Demortier,K. Goulianos,G. Lungu,S. Malik,C. Mesropian,S. Arora,O. Atramentov,A. Barker,C. Contreras-Campana,E. Contreras-Campana,D. Duggan,Y. Gershtein,R. Gray,E. Halkiadakis,D. Hidas,D. Hits,A. Lath,S. Panwalkar,R. Patel,A. Richards,K. Rose,S. Schnetzer,S. Somalwar,R. Stone,S. Thomas,G. Cerizza, M. Hollingsworth,S. Spanier,Z. C. Yang,R. Eusebi,W. Flanagan,J. Gilmore,A. Gurrola,T. Kamon,V. Khotilovich,R. Montalvo,I. Osipenkov,Y. Pakhotin,A. Safonov,S. Sengupta,I. Suarez,A. Tatarinov,D. Toback,N. Akchurin, C. Bardak,J. Damgov,P. R. Dudero,C. Jeong,K. Kovitanggoon,S. W. Lee,T. Libeiro, P. Mane,Y. Roh,A. Sill,I. Volobouev,R. Wigmans,E. Yazgan,E. Appelt,E. Brownson,D. Engh, W. Gabella,M. Issah,W. Johns,C. Johnston,P. Kurt,C. Maguire,A. Melo,P. Sheldon,B. Snook,S. Tuo,J. Velkovska,M. W. Arenton,M. Balazs,S. Boutle,B. Cox,B. Francis, S. Goadhouse,J. Goodell,R. Hirosky,A. Ledovskoy,C. Lin,J. Wood,R. Yohay,S. Gollapinni,R. Harr,P. E. Karchin,C. Kottachchi Kankanamge Don,P. Lamichhane,M. Mattson, C. Milstène,A. Sakharov,M. Anderson,M. Bachtis, D. Belknap,J. N. Bellinger,D. Carlsmith,M. Cepeda,S. Dasu,J. Efron,L. Gray,K. S. Grogg,M. Grothe,R. Hall-Wilton,M. Herndon,A. Hervé,P. Klabbers,J. Klukas,A. Lanaro,C. Lazaridis,J. Leonard,R. Loveless,A. Mohapatra,I. Ojalvo,W. Parker,I. Ross,A. Savin,W. H. Smith,J. Swanson,M. Weinberg

semanticscholar（2011）

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Abstract

A search for the rare decays Bs ! þ and B ! þ is performed in pp collisions at ffiffi s p 1⁄4 7 TeV, with a data sample corresponding to an integrated luminosity of 1:14 fb , collected by the CMS experiment at the LHC. In both cases, the number of events observed after all selection requirements is consistent with expectations from background and standard-model signal predictions. The resulting upper limits on the branching fractions are BðB0s ! þ Þ< 1:9 10 8 and BðB0 ! þ Þ< 4:6 10 , at 95% confidence level.

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