Search for B(s) and B to dimuon decays in pp collisions at 7 TeV

Journal Article · Tue Nov 01 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.107.191802· OSTI ID:1155762

Chatrchyan, Serguei ^[1]

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1. Yerevan Physics Inst. (Armenia)

A search for the rare decays B(s) to dimuons and B0 to dimuons is performed in pp collisions at sqrt(s)=7 TeV, with a data sample corresponding to an integrated luminosity of 1.14 inverse femtobarns, 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 B(B(s) to mu^+ mu^-) < 1.9 10^-8 and B(B0 to mu^+ mu^-) < 4.6 10^-9, at 95% confidence level.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: CMS Collaboration
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1155762
• Report Number(s): FERMILAB-PUB-11-703-CMS; CERN-PH-EP-2011-120; CMS-BPH-11-002; arXiv eprint number arXiv:1107.5834
• Journal Information: Physical Review Letters, Vol. 107, Issue 19; ISSN 0031-9007
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS