Afficher la notice abrégée

dc.contributor.authorYAN, Mao-Jun
dc.contributor.authorPENG, Fang-Zheng
hal.structure.identifierLaboratoire de Physique des Deux Infinis Bordeaux [LP2I - Bordeaux]
dc.contributor.authorSÁNCHEZ SÁNCHEZ, Mario
dc.contributor.authorPAVON VALDERRAMA, Manuel
dc.date.accessioned2022-09-15T12:35:03Z
dc.date.available2022-09-15T12:35:03Z
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/145324
dc.description.abstractEnThe LHCb collaboration has detected a new hidden-charm pentaquark with the quantum numbers of a $\Lambda$ baryon: the $P_{\psi s}^{\Lambda}(4338)$. In the molecular picture this pentaquark will be interpreted as a $\bar{D} \Xi_c$ molecule. Here we briefly comment on the relation of the new $P_{\psi s}^{\Lambda}(4338)$ with the $P^{\Lambda}_{\psi s}(4459)$. We find that the $P_{\psi s}^{\Lambda}(4338)$ and $P_{\psi s}^{\Lambda}(4459)$ both accept a common molecular description in terms of the same parameters, which predicts the existence of a few additional $P_{\psi}^N$, $P_{\psi s}^{\Lambda}$, $P_{\psi s}^{\Sigma}$ and $P_{\psi s s}^{\Xi}$ pentaquarks composed of a charmed antimeson and an antitriplet charmed baryon. The most robust of these predicted pentaquarks is a $P_{\psi s}^{\Lambda}$ with a mass in the $(4235-4255)\,{\rm MeV}$ range, while other two interesting ones are a $P_{\psi}^{N}(4150)$ and a $P_{\psi}^{\Sigma}(4335)$, the later basically at the same mass as the $P_{\psi}^{\Lambda}(4338)$, with which it might mix owing to isospin symmetry breaking effects.
dc.language.isoen
dc.subject.enisospin
dc.subject.ensymmetry breaking
dc.subject.eneffect
dc.subject.enpentaquark
dc.subject.enbaryon
dc.subject.enLHC-B
dc.subject.enquantum number
dc.subject.encharmed baryon
dc.title.enThe $P_{\psi s}^{\Lambda}(4338)$ pentaquark and its partners in the molecular picture
dc.typeDocument de travail - Pré-publication
dc.subject.halPhysique [physics]/Physique des Hautes Energies - Phénoménologie [hep-ph]
dc.subject.halPhysique [physics]/Physique des Hautes Energies - Expérience [hep-ex]
dc.subject.halPhysique [physics]/Physique Nucléaire Théorique [nucl-th]
dc.identifier.arxiv2207.11144
bordeaux.hal.laboratoriesLaboratoire de Physique des Deux Infinis de Bordeaux (LP2I) - UMR 5797*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
hal.identifierhal-03759809
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03759809v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=YAN,%20Mao-Jun&PENG,%20Fang-Zheng&S%C3%81NCHEZ%20S%C3%81NCHEZ,%20Mario&PAVON%20VALDERRAMA,%20Manuel&rft.genre=preprint


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée