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Angular analysis of the decay B + → K∗(892) +µ +µ − in proton-proton collisions at √s = 8 TeV

Angular analysis of the decay B + → K∗(892) +µ +µ − in proton-proton collisions at √s = 8 TeV

CMS Collaboration; Sirunyan, A. M.; DUBE, SOURABH; KANSAL, B.; PANDEY, S.; RANE, A.; RASTOGI, A.; SHARMA, SEEMA et al.
URI: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/5886
https://doi.org/10.1007/JHEP04(2021)124
Date: 2021-04


Abstract:

Angular distributions of the decay B+ → K∗(892)+μ+μ− are studied using events collected with the CMS detector in s√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.

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