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Title: Angular analysis of charged and neutral B -> K mu(+) mu(-) decays
Author: Camboni, Alessandro
Garrido Beltrán, Lluís
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, Carla
Picatoste Olloqui, E.
Rives Molina, V.
Ruiz, Hugo
LHCb Collaboration
Keywords: Hadrons
Gran Col·lisionador d'Hadrons
Física de partícules
Large Hadron Collider (France and Switzerland)
Particle physics
Issue Date: May-2014
Publisher: Springer Verlag
Abstract: The angular distributions of the rare decays B+ → K+µ +µ − and B0 → K0 S µ +µ − are studied with data corresponding to 3 fb−1 of integrated luminosity, collected in proton-proton collisions at 7 and 8 TeV centre-of-mass energies with the LHCb detector. The angular distribution is described by two parameters, FH and the forward-backward asymmetry of the dimuon system AFB, which are determined in bins of the dimuon mass squared. The parameter FH is a measure of the contribution from (pseudo)scalar and tensor amplitudes to the decay width. The measurements of AFB and FH reported here are the most precise to date and are compatible with predictions from the Standard Model.
Note: Reproducció del document publicat a:
It is part of: Journal of High Energy Physics, 2014, vol. 5, num. 82, p. 1-27
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ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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