Angular analysis of the decay B+ ? K?(892)+ ? + ? ? in proton-proton collisions at ?s = 8 TeV
Escalante, Del Valle A.
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Angular distributions of the decay B+? K?(892)+?+?? are studied using events collected with the CMS detector in s = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb?1. The forward-backward asymmetry of the muons and the longitudinal polarization of the K?(892)+ meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction. [Figure not available: see fulltext.] © 2021, The Author(s).