Files

619634.pdf (636.61 KB)

Document type

Article

Version

Published version

Publication date

2013-02-19

Publication license

cc by, (c) LHCb Collaboration, 2013
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/56456

Differential branching fraction and angular analysis of the B+→K+μ+μ− decay

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

http://dx.doi.org/10.1007/JHEP02(2013)105

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.

Subject

Gran Col·lisionador d'Hadrons, Teoria quàntica de camps, Relativitat (Física), Partícules (Física nuclear)

Subject (English)

Large Hadron Collider (France and Switzerland), Quantum field theory, Relativity (Physics), Particles (Nuclear physics)

Citation

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

Citation

ABELLAN BETETA, Carlos, et al. Differential branching fraction and angular analysis of the B+→K+μ+μ− decay. Journal of High Energy Physics. 2013. Vol. 1301, num. 105, pags. 1-15. ISSN 1126-6708. [consulted: 12 of June of 2026]. Available at: https://hdl.handle.net/2445/56456

Export metadata

JSON - METS

Share record