Angular analysis of the decay B+-> K*(892)(+)mu(+)mu(-) in proton-proton collisions at root s=8 TeV

The CMS collaboration, A. M. Sirunyan, A. Tumasyan, P. Eerola, Laurent Forthomme, H. Kirschenmann, K. Österberg, M. Voutilainen, Erik Brücken, F. Garcia, J. Havukainen, V. Karimäki, Minsuk Kim, R. Kinnunen, T. Lampén, K. Lassila-Perini, S. Lehti, T. Lindén, P. Luukka, H. SiikonenE. Tuominen, J. Tuominiemi, T. Tuuva

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Sammanfattning

Angular distributions of the decay B+-> K*(892)(+)mu(+)mu(-) are studied using events collected with the CMS detector in root 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.

Originalspråkengelska
Artikelnummer124
TidskriftJournal of High Energy Physics
Utgåva4
Antal sidor35
ISSN1029-8479
DOI
StatusPublicerad - 14 apr 2021
MoE-publikationstypA1 Tidskriftsartikel-refererad

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