CMS-PAS-BPH-11-009

CMS-PAS-BPH-11-009
Angular analysis and branching ratio measurement of the decay B0 to K*0 mu+ mu-
CMS Collaboration
2013

Abstract: The angular distributions and the differential branching fraction of the decay $\text{B}^{0} \rightarrow \text{K}^{*0} \mu^{+} \mu^{-}$ are studied using an integrated luminosity of 5.2~\fbinv of data collected with the CMS detector. The forward-backward asymmetry of the muons $A_{FB}$ , the $\text{K}^{\ast 0}$ longitudinal polarization fraction $F_{L}$ , and the differential branching fraction ${\rm d}\mathcal{B}/{\rm d}q^{2}$ , are determined as a function of the dimuon invariant mass squared. The measurements are in good agreement with the standard model.
Links: CDS record (PDF) ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; These preliminary results are superseded in this paper, PLB 727 (2013) 77-100. The superseded preliminary plots can be found here.

CMS Publications