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Evidence for exotic Hadron contributions to Λ_{b}^{0}→J/ψpπ^{-} decays

Abstract:

A full amplitude analysis of Λ_{b}^{0}→J/ψpπ^{-} decays is performed with a data sample acquired with the LHCb detector from 7 and 8 TeV pp collisions, corresponding to an integrated luminosity of 3  fb^{-1}. A significantly better description of the data is achieved when, in addition to the previously observed nucleon excitations N→pπ^{-}, either the P_{c}(4380)^{+} and P_{c}(4450)^{+}→J/ψp states, previously observed in Λ_{b}^{0}→J/ψpK^{-} decays, or the Z_{c}(4200)^{-}→J/ψπ^{-} state, prev...

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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.117.082003

Authors


Abellán Beteta, C More by this author
Adinolfi, M More by this author
Ajaltouni, Z More by this author
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior More from this funder
Conselho Nacional de Desenvolvimento Científico e Tecnológico More from this funder
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro More from this funder
Financiadora de Estudos e Projetos More from this funder
National Natural Science Foundation of China More from this funder
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Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
117
Issue:
8
Pages:
Article: 082003
Publication date:
2016-08-18
Acceptance date:
2016-07-28
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:631513
URN:
uri:244c90cf-1a09-4603-8a0e-43ec38605a8e
UUID:
uuid:244c90cf-1a09-4603-8a0e-43ec38605a8e
Local pid:
pubs:631513
Language:
English
Keywords:

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