In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2012, No. 12 ( 2012-12)
Abstract:
A discovery of the rare decay B + → π + μ + μ − is presented. This decay is observed for the first time, with 5.2 σ significance. The observation is made using pp collision data, corresponding to an integrated luminosity of 1.0 fb −1 , collected with the LHCb detector. The measured branching fraction is (2.3 ± 0.6 (stat.) ± 0.1 (syst.))×10 −8 , and the ratio of the B + → π + μ + μ − and B + → K + μ + μ − branching fractions is measured to be 0.053 ± 0.014 (stat.) ± 0.001 (syst.).
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP12(2012)125
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2012
detail.hit.zdb_id:
2027350-2