Angular distributions of the decay B+ → K∗(892)+μ+μ− 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.
Angular analysis of the decay B+ -> K*+(892) mu+mu- in proton-proton collisions at sqrt(s) = 8 TeV / Belforte, S.; Candelise, V.; Casarsa, M.; Cossutti, F.; DA ROLD, A.; DELLA RICCA, G.; Vazzoler, F.; ET AL (the CMS, Collaboration). - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - STAMPA. - 2021:04(2021), pp. 124.1-124.35. [10.1007/JHEP04(2021)124]
Angular analysis of the decay B+ -> K*+(892) mu+mu- in proton-proton collisions at sqrt(s) = 8 TeV
CANDELISE, V.;DA ROLD, A.;DELLA RICCA, G.;VAZZOLER, F.;
2021-01-01
Abstract
Angular distributions of the decay B+ → K∗(892)+μ+μ− 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.| File | Dimensione | Formato | |
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Sirunyan2021_Article_AngularAnalysisOfTheDecayBK892.pdf
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