Angular analysis and branching fraction measurement of the decay $B^0 \\to K^{*0} \\mu^+\\mu^-$
Journal
Physics Letters
Journal Volume
B727
Pages
77-100
Date Issued
2013-08
Author(s)
Abstract
The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ− are studied using a data sample corresponding to an integrated luminosity of 5.2fb−1 collected with the CMS detector at the LHC in pp collisions at s=7TeV. 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.
Type
journal article