The angular distribution of the flavor-changing neutral current decay B+→K+μ+μ- is studied in proton-proton collisions at a center-of-mass energy of 8 TeV. The analysis is based on data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 20.5 fb-1. The forward-backward asymmetry AFB of the dimuon system and the contribution FH from the pseudoscalar, scalar, and tensor amplitudes to the decay width are measured as a function of the dimuon mass squared. The measurements are consistent with the standard model expectations.

Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2018). Angular analysis of the decay B+ →k+μ+μ- in proton-proton collisions at s =8 TeV. PHYSICAL REVIEW D, 98(11) [10.1103/PhysRevD.98.112011].

Angular analysis of the decay B+ →k+μ+μ- in proton-proton collisions at s =8 TeV

Dinardo M. E.;Ghezzi A.;Govoni P.;Massironi A.;Paganoni M.;Ragazzi S.;Tabarelli De Fatis T.;Gerosa R.;Lucchini M. T.;De Guio F.;
2018

Abstract

The angular distribution of the flavor-changing neutral current decay B+→K+μ+μ- is studied in proton-proton collisions at a center-of-mass energy of 8 TeV. The analysis is based on data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 20.5 fb-1. The forward-backward asymmetry AFB of the dimuon system and the contribution FH from the pseudoscalar, scalar, and tensor amplitudes to the decay width are measured as a function of the dimuon mass squared. The measurements are consistent with the standard model expectations.
Articolo in rivista - Articolo scientifico
Standard Model
English
2018
98
11
112011
none
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2018). Angular analysis of the decay B+ →k+μ+μ- in proton-proton collisions at s =8 TeV. PHYSICAL REVIEW D, 98(11) [10.1103/PhysRevD.98.112011].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/309541
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