Angular analysis and branching fraction measurement of the decay B-0 - GT K*(0)mu(+)mu(-)
CMS Collaboration (ukupan broj autora: 2217)
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The angular distributions and the differential branching fraction of the decay B-0 - GT K*(892)(0)mu(+)mu(-) are studied using a data sample corresponding to an integrated luminosity of 5.2 fb(-1) collected with the CMS detector at the LHC in pp collisions at root 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. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.
Ključne reči:CMS / Physics
Izvor:Physics Letters B, 2013, 727, 1-3, 77-100
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