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dc.contributor.authorGarcía Recio, Carmenes_ES
dc.contributor.authorNieves, Juan Migueles_ES
dc.contributor.authorRomanets, Olenaes_ES
dc.contributor.authorSalcedo, Lorenzo Luises_ES
dc.contributor.authorTolós, Lauraes_ES
dc.date.accessioned2015-11-24T11:45:55Z-
dc.date.available2015-11-24T11:45:55Z-
dc.date.issued2013-02-20-
dc.identifier.citationPhysical Review - Section D - Particles and Fields 87 (3): 034032 - 9 (2013)es_ES
dc.identifier.issn1550-7998-
dc.identifier.urihttp://hdl.handle.net/10261/125619-
dc.description.abstractThe LHCb Collaboration has recently observed two narrow baryon resonances with beauty. Their masses and decay modes look consistent with the quark model orbitally excited states Lambda(b)(5912) and Lambda(b)*(5920), with quantum numbers J(P) = 1/2(-) and 3/2(-), respectively. We predict the existence of these states within a unitarized meson-baryon coupled-channel dynamical model, which implements heavy-quark spin symmetry. Masses, quantum numbers and couplings of these resonances to the different meson-baryon channels are obtained. We find that the resonances Lambda(0)(b)(5912) and Lambda(0)(b)(5920) are heavy-quark spin symmetry partners, which naturally explains their approximate mass degeneracy. Corresponding bottom-strange baryon resonances are predicted at Xi(b)(6035.4) (J(P) = 1/2(-)) and Xi(b)(6043.3) (J(P) = 3/2(-)). The two Lambda(b) and two Xi(b) resonances complete a multiplet of the combined symmetry SU(3)-flavor times heavy-quark spin.es_ES
dc.description.sponsorshipWe thank E. Oset and E. Ruiz Arriola for discussions and Anton Poluektov for useful information on the LHCb experimental setup. This research was supported by DGI and FEDER funds, under Contracts No. FIS2011-28853-C02-02, No. FIS2011-24149, and No. FPA2010-16963 and the Spanish Consolider-Ingenio 2010 Program CPAN (CSD2007-00042), by Junta de Andalucia Grant No. FQM-225, by Generalitat Valenciana under Contract No. PROMETEO/2009/0090 and by the EU HadronPhysics2 project, Grant No. 227431. O. R. wishes to acknowledge support from the Rosalind Franklin Fellowship. L. T. acknowledges support from Ramon y Cajal Research Program, and from FP7-PEOPLE-2011-CIG under Contract No. PCIG09-GA-2011-291679.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.relation.isversionofPreprintes_ES
dc.rightsopenAccesses_ES
dc.subjectKaon-nucleon interactionses_ES
dc.subjectHeavy-quark symmetryes_ES
dc.subjectChiral dynamicses_ES
dc.subjectCoupled-channeles_ES
dc.subjectMeson-exchangees_ES
dc.subjectN-asteriskes_ES
dc.subjectSum-ruleses_ES
dc.subjectCharmes_ES
dc.subjectSpectroscopyes_ES
dc.subjectStateses_ES
dc.titleOdd parity bottom-flavored baryon resonanceses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1103/PhysRevD.87.034032-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1103/PhysRevD.87.034032es_ES
dc.identifier.e-issn1550-2368-
dc.contributor.funderJunta de Andalucíaes_ES
dc.contributor.funderGeneralitat Valencianaes_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderConsejo Superior de Investigaciones Científicas (España)es_ES
dc.relation.csices_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003359es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003339es_ES
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