$Angular analysis of the decay B+ → K∗(892)+μ+μ− in proton-proton collisions at s $$ \sqrt{\mathrm{s}} $$ = 8 TeV$

Angular analysis of the decay B+ → K∗(892)+μ+μ− in proton-proton collisions at s $$ \sqrt{\mathrm{s}} $$ = 8 TeV

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

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Bibliographic Details
Main Authors:	Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Escalante Del Valle, A., Frühwirth, R., Jeitler, M., Krammer, N., Lechner, L., Liko, D., Mikulec, I., Pitters, F. M., Rad, N., Schieck, J., Schöfbeck, R., Spanring, M., Templ, S.
Other Authors:	Massachusetts Institute of Technology. Department of Physics
Format:	Article
Language:	English
Published:	Springer Berlin Heidelberg 2021
Online Access:	https://hdl.handle.net/1721.1/136922

Description
Summary:	Abstract Angular distributions of the decay B+ → K∗(892)+μ+μ− are studied using events collected with the CMS detector in s $$ \sqrt{\mathrm{s}} $$ = 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.