Measurement of the $B_s^0\to J/\psi K_S^0$ branching fraction - IN2P3 - Institut national de physique nucléaire et de physique des particules
Article Dans Une Revue Physics Letters B Année : 2012

Measurement of the $B_s^0\to J/\psi K_S^0$ branching fraction

R. Aaij
  • Fonction : Auteur
J. He
J. Cogan
O. Leroy
J. Serrano

Résumé

The $B_s^0\to J/\psi K_S^0$ branching fraction is measured in a data sample corresponding to 0.41$fb^{-1}$ of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to the penguin contributions affecting the sin2$\beta$ measurement from $B^0\to J/\psi K_S^0$ The time-integrated branching fraction is measured to be $BF(B_s^0\to J/\psi K_S^0)=(1.83\pm0.28)\times10^{-5}$. This is the most precise measurement to date.

Dates et versions

in2p3-00697164 , version 1 (14-05-2012)

Identifiants

Citer

R. Aaij, I. de Bonis, D. Decamp, Ph. Ghez, P. Hopchev, et al.. Measurement of the $B_s^0\to J/\psi K_S^0$ branching fraction. Physics Letters B, 2012, 713, pp.172-179. ⟨10.1016/j.physletb.2012.05.062⟩. ⟨in2p3-00697164⟩
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