In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2012, No. 4 ( 2012-04)
Abstract:
A search for the rare decays $ {\text{B}}_{\text{s}}^0 $ → μ + μ − and B 0 → μ + μ − is performed in pp collisions at $ \sqrt {s} = {7}\;{\text{TeV}} $ , with a data sample corresponding to an integrated luminosity of 5 fb −1 collected by the CMS experiment at the LHC. In both decays, the number of events observed after all selection requirements is consistent with the expectation from background plus standard model signal predictions. The resulting upper limits on the branching fractions are $ \mathcal{B}\left( {{\text{B}}_{\text{s}}^0 \to {\mu^{ + }}{\mu^{ - }}} \right) 〈 {7}.{7} \times {1}{0^{{ - {9}}}} $ and $ \mathcal{B}\left( {{{\text{B}}^0} \to {\mu^{ + }}{\mu^{ - }}} \right) 〈 1.8 \times {10^{{ - 9}}} $ at 95% confidence level.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP04(2012)033
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2012
detail.hit.zdb_id:
2027350-2
