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research article
First observation of the decay B+ -> pi(+)mu(+)mu(-)
A discovery of the rare decay B+ -> pi(+)mu(+)mu(-) is presented. This decay is observed for the first time, with 5.2 sigma significance. The observation is made using p p 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.)) x 10(-8), and the ratio of the B+ -> pi(+)mu(+)mu(-) and B+ -> K+mu(+)mu(-) branching fractions is measured to be 0.053 +/- 0.014 (stat.) +/- 0.001 (syst.).
Type
research article
Web of Science ID
WOS:000313124000060
Authors
Aaij, R.
•
Abellan Beteta, C.
•
Adametz, A.
•
Adeva, B.
•
Adinolfi, M.
•
Adrover, C.
•
Affolder, A.
•
Ajaltouni, Z.
•
Albrecht, J.
•
Alessio, F.
Corporate authors
LHCb Collaboration
Publication date
2012
Publisher
Published in
Volume
12
Start page
125
Subjects
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
March 28, 2013
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