A search for the rare decays B-s(0) --> mu(+)mu(-) and B-0 --> mu(+)mu(-) is performed in pp collisions at root s = 7 TeV, with a data sample corresponding to an integrated luminosity of 1.14 fb(-1), 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(0) --> mu(+)mu(-)) < 1.9 x 10(-8) and B(B-0 --> mu(+)mu(-)) < 4.6 x 10(-9), at 95% confidence level.

Search for Bs0→μ+μ- and B0→μ+μ- decays in pp collisions at √s=7TeV

PAGANO, Davide;
2011-01-01

Abstract

A search for the rare decays B-s(0) --> mu(+)mu(-) and B-0 --> mu(+)mu(-) is performed in pp collisions at root s = 7 TeV, with a data sample corresponding to an integrated luminosity of 1.14 fb(-1), 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(0) --> mu(+)mu(-)) < 1.9 x 10(-8) and B(B-0 --> mu(+)mu(-)) < 4.6 x 10(-9), at 95% confidence level.
File in questo prodotto:
File Dimensione Formato  
2-s2.0-80155205577.pdf

accesso aperto

Tipologia: Full Text
Licenza: DRM non definito
Dimensione 390.38 kB
Formato Adobe PDF
390.38 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11379/484070
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 56
  • ???jsp.display-item.citation.isi??? 48
social impact