The $P_{\psi s}^{\Lambda}(4338)$ pentaquark and its partners in the molecular picture
| dc.contributor.author | YAN, Mao-Jun | |
| dc.contributor.author | PENG, Fang-Zheng | |
| hal.structure.identifier | Laboratoire de Physique des Deux Infinis Bordeaux [LP2I - Bordeaux] | |
| dc.contributor.author | SÁNCHEZ SÁNCHEZ, Mario | |
| dc.contributor.author | PAVON VALDERRAMA, Manuel | |
| dc.date.accessioned | 2022-09-15T12:35:03Z | |
| dc.date.available | 2022-09-15T12:35:03Z | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/145324 | |
| dc.description.abstractEn | The 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.iso | en | |
| dc.subject.en | isospin | |
| dc.subject.en | symmetry breaking | |
| dc.subject.en | effect | |
| dc.subject.en | pentaquark | |
| dc.subject.en | baryon | |
| dc.subject.en | LHC-B | |
| dc.subject.en | quantum number | |
| dc.subject.en | charmed baryon | |
| dc.title.en | The $P_{\psi s}^{\Lambda}(4338)$ pentaquark and its partners in the molecular picture | |
| dc.type | Document de travail - Pré-publication | |
| dc.subject.hal | Physique [physics]/Physique des Hautes Energies - Phénoménologie [hep-ph] | |
| dc.subject.hal | Physique [physics]/Physique des Hautes Energies - Expérience [hep-ex] | |
| dc.subject.hal | Physique [physics]/Physique Nucléaire Théorique [nucl-th] | |
| dc.identifier.arxiv | 2207.11144 | |
| bordeaux.hal.laboratories | Laboratoire de Physique des Deux Infinis de Bordeaux (LP2I) - UMR 5797 | * |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | CNRS | |
| hal.identifier | hal-03759809 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-03759809v1 | |
| bordeaux.COinS | ctx_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 |
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