Differential branching fractions and isospin asymmetries of B -> K ((*)) mu (+) mu (-) decays
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
The isospin asymmetries of B → Kμ + μ − and B → K * μ + μ − decays and the partial branching fractions of the B 0 → K 0 μ + μ −, B + → K + μ + μ − and B + → K *+ μ + μ − decays are measured as functions of the dimuon mass squared, q 2. The data used correspond to an integrated luminosity of 3 fb−1 from proton-proton collisions collected with the LHCb detector at centre-of-mass energies of 7 TeV and 8 TeV in 2011 and 2012, respectively. The isospin asymmetries are both consistent with the Standard Model expectations. The three measured branching fractions favour lower values than their respective theoretical predictions, however they are all individually consistent with the Standard Model.
Date Issued
2014-06-01
Date Acceptance
2014-05-22
Citation
Journal of High Energy Physics, 2014, 2014 (6)
ISSN
1029-8479
Publisher
Springer Verlag (Germany)
Journal / Book Title
Journal of High Energy Physics
Volume
2014
Issue
6
Copyright Statement
© 2014 The Author(s). This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0 - https://creativecommons.org/licenses/by/4.0/), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Sponsor
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000338448800001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
ST/G005974/1
ST/K001604/1
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
Rare decay
Branching fraction
B physics
Flavour Changing Neutral Currents
Hadron-Hadron Scattering
Publication Status
Published
Article Number
ARTN 133
Date Publish Online
2014-06-23