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Observation of the Decays Λ0b→χc1pK− and Λ0b→χc2pK−

Abstract:

The first observation of the decays $Λ_{b}^{0}→χ_{c1}pK^{-}$ and $Λ_{b}^{0}→χ_{c2}pK^{-}$ is reported using a data sample corresponding to an integrated luminosity of $3.0  fb^{-1}$, collected by the LHCb experiment in $pp$ collisions at center-of-mass energies of 7 and 8 TeV. The following ratios of branching fractions are measured:

$B(Λ_{b}^{0}→χ_{c1}pK^{-})/B(Λ_{b}^{0}→J/ψpK^{-})=0.242±0.014±0.013±0.009,$ $B(Λ_{b}^{0}→χ_{c2}pK^{-})/B(Λ_{b}^{0}→J/ψpK^{-})=0.248±0.020±0.014±0.009,$ $B...

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

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Publisher copy:
10.1103/physrevlett.119.062001

Authors


LHCb collaboration More by this author
Adinolfi, M More by this author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Particle Physics
Oxford college:
St Annes College
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:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
119
Issue:
6
Pages:
062001
Publication date:
2017-08-08
Acceptance date:
2017-07-12
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:693525
URN:
uri:0d8e1296-dfbf-4e45-a94a-09b6f1cd3786
UUID:
uuid:0d8e1296-dfbf-4e45-a94a-09b6f1cd3786
Local pid:
pubs:693525
Language:
English
Keywords:

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