Observation of the semileptonic decay B+-> p(p)over-bar mu(+)nu(mu)
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Published version
Author(s)
Type
Journal Article
Abstract
The Cabibbo-suppressed semileptonic decay B+→pp¯¯¯μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯¯¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be
B(B+→pp¯¯¯μ+νμ)=(5.27+0.23−0.24±0.21±0.15)×10−6,
where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel.
B(B+→pp¯¯¯μ+νμ)=(5.27+0.23−0.24±0.21±0.15)×10−6,
where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel.
Date Issued
2020-03-25
Date Acceptance
2020-03-01
Citation
The Journal of High Energy Physics, 2020, 2020 (3), pp.1-22
ISSN
1029-8479
Publisher
Springer Verlag (Germany)
Start Page
1
End Page
22
Journal / Book Title
The Journal of High Energy Physics
Volume
2020
Issue
3
Copyright Statement
© 2020 CERN for the benefit of the LHCb collaboration. CC-BY-4.0 licence. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000524489600002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
B physics
Branching fraction
Flavor physics
Hadron-Hadron scattering (experiments)
Publication Status
Published
Article Number
ARTN 146
Date Publish Online
2020-03-25