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Title: Differential branching fraction and angular analysis of the B+→K+μ+μ− decay
Author: LHCb Collaboration
Abellan Beteta, Carlos
Calvo Gómez, M.
Camboni, Alessandro
Comerma Montells, Albert
Domingo Bonal, F.
Garrido Beltrán, Lluís
Grabalosa Gándara, Marc
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Lopez Asamar, E.
Pérez-Calero Yzquierdo, Antonio
Picatoste Olloqui, Eduardo
Pie Valls, B. (Blai)
Potterat, Cédric
Rives Molina, Vicente José
Ruiz, Hugo (Ruiz Pérez)
Vázquez Gómez, R.
Vilasis-Cardona, X.
Keywords: Gran Col·lisionador d'Hadrons
Teoria quàntica de camps
Relativitat (Física)
Partícules (Física nuclear)
Large Hadron Collider (France and Switzerland)
Quantum field theory
Relativity (Physics)
Particles (Nuclear physics)
Issue Date: 19-Feb-2013
Publisher: Springer Verlag
Abstract: The angular distribution and differential branching fraction of the decay B +→ K + μ + μ − are studied with a dataset corresponding to 1.0fb−1 of integrated luminosity, collected by the LHCb experiment. The angular distribution is measured in bins of dimuon invariant mass squared and found to be consistent with Standard Model expectations. Integrating the differential branching fraction over the full dimuon invariant mass range yields a total branching fraction of B (B + → K + μ + μ −) = (4.36 ± 0.15 ± 0.18) × 10−7. These measurements are the most precise to date of the B + → K + μ + μ − decay.
Note: Reproducció del document publicat a:
It is part of: Journal of High Energy Physics, 2013, vol. 1301 , num. 105, p. 1-15
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ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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