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Title: | Differential branching fraction and angular analysis of the B+→K+μ+μ− decay |
Author: | Abellan Beteta, Carlos Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Domingo Bonal, Francesc Garrido Beltrán, Lluís Grabalosa Gándara, Marc Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Pie Valls, B. (Blai) Potterat, Cédric Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration |
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: http://dx.doi.org/10.1007/JHEP02(2013)105 |
It is part of: | Journal of High Energy Physics, 2013, vol. 1301 , num. 105, p. 1-15 |
URI: | http://hdl.handle.net/2445/56456 |
Related resource: | http://dx.doi.org/10.1007/JHEP02(2013)105 |
ISSN: | 1126-6708 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Publicacions de projectes de recerca finançats per la UE |
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