Article Dans Une Revue Physics Letters B Année : 2013

Angular analysis and branching fraction measurement of the decay B0 to K*0 mu+ mu-

S. Chatrchyan
  • Fonction : Auteur
M. Titov
  • Fonction : Auteur
Pierre Busson
C. Mironov
P. Paganini
J.-L. Agram
E. Conte
D. Contardo

Résumé

The angular distributions and the differential branching fraction of the decay B0 to K*(892)0 mu+ mu- are studied using a data sample corresponding to an integrated luminosity of 5.2 inverse femtobarns collected with the CMS detector at the LHC in pp collisions at sqrt(s) = 7 TeV. From more than 400 signal decays, the forward-backward asymmetry of the muons, the K*(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the square of the dimuon invariant mass. The measurements are in good agreement with standard model predictions.

Dates et versions

in2p3-00854499 , version 1 (27-08-2013)

Identifiants

Citer

S. Chatrchyan, M. Besancon, F. Couderc, M. Dejardin, D. Denegri, et al.. Angular analysis and branching fraction measurement of the decay B0 to K*0 mu+ mu-. Physics Letters B, 2013, 727, pp.77-100. ⟨10.1016/j.physletb.2013.10.017⟩. ⟨in2p3-00854499⟩
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