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Observation of the suppressed decay Λb0 → pπ−μ+μ−

Abstract:

The suppressed decay Λb0 → pπ−μ+μ−, excluding the J/ψ and ψ(2S) → μ+μ− resonances, is observed for the first time with a significance of 5.5 standard deviations. The analysis is performed with proton-proton collision data corresponding to an integrated luminosity of 3 fb−1 collected with the LHCb experiment. The Λb0 → pπ−μ+μ− branching fraction is measured relative to the Λb0 → J/ψ(→μ+μ−)pπ− branching fraction giving $\frac{\mathrm{\mathcal{B}}\left({\Lambda}_b^0\to p{\pi}^{-}{\mu}^{+}{\mu}^{...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1007/JHEP04(2017)029

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Particle Physics
Oxford college:
St Annes College
Role:
Author
European Research Council More from this funder
Science and Technology Facilities Council More from this funder
Leverhulme Trust More from this funder
Royal Society More from this funder
Publisher:
IOP Publishing Publisher's website
Journal:
Journal of High Energy Physics Journal website
Volume:
2017
Issue:
4
Pages:
029
Publication date:
2017-04-06
Acceptance date:
2017-03-20
DOI:
EISSN:
1029-8479
ISSN:
1029-8479
Pubs id:
pubs:691300
URN:
uri:aae10d5e-1a9f-4b89-b5d9-e041fccb6eb7
UUID:
uuid:aae10d5e-1a9f-4b89-b5d9-e041fccb6eb7
Local pid:
pubs:691300
Paper number:
4

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