The $P_{\psi s}^{\Lambda}(4338)$ pentaquark and its partners in the molecular picture
Phys.Rev.D 107 (2023) 7, 074025 The LHCb collaboration has detected a new hidden-charm pentaquark with the quantum numbers of a $\Lambda$ baryon: the $P_{\psi s}^{\Lambda}(4338)$. This pentaquark will be interpreted as a $\bar{D}_s \Lambda_c$-$\bar{D} \Xi_c$ resonance within a contact-range theory....
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22.07.2022
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Abstract | Phys.Rev.D 107 (2023) 7, 074025 The LHCb collaboration has detected a new hidden-charm pentaquark with the
quantum numbers of a $\Lambda$ baryon: the $P_{\psi s}^{\Lambda}(4338)$. This
pentaquark will be interpreted as a $\bar{D}_s \Lambda_c$-$\bar{D} \Xi_c$
resonance within a contact-range theory. 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 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 $P_{\psi s s}^{\Xi}$
molecular 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 latter basically at the same mass as the
$P_{\psi}^{\Lambda}(4338)$, with which it might mix owing to isospin symmetry
breaking effects. |
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AbstractList | Phys.Rev.D 107 (2023) 7, 074025 The LHCb collaboration has detected a new hidden-charm pentaquark with the
quantum numbers of a $\Lambda$ baryon: the $P_{\psi s}^{\Lambda}(4338)$. This
pentaquark will be interpreted as a $\bar{D}_s \Lambda_c$-$\bar{D} \Xi_c$
resonance within a contact-range theory. 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 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 $P_{\psi s s}^{\Xi}$
molecular 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 latter basically at the same mass as the
$P_{\psi}^{\Lambda}(4338)$, with which it might mix owing to isospin symmetry
breaking effects. |
Author | Peng, Fang-Zheng Valderrama, Manuel Pavon Sánchez, Mario Sánchez Yan, Mao-Jun |
Author_xml | – sequence: 1 givenname: Mao-Jun surname: Yan fullname: Yan, Mao-Jun – sequence: 2 givenname: Fang-Zheng surname: Peng fullname: Peng, Fang-Zheng – sequence: 3 givenname: Mario Sánchez surname: Sánchez fullname: Sánchez, Mario Sánchez – sequence: 4 givenname: Manuel Pavon surname: Valderrama fullname: Valderrama, Manuel Pavon |
BackLink | https://doi.org/10.48550/arXiv.2207.11144$$DView paper in arXiv https://doi.org/10.1103/PhysRevD.107.074025$$DView published paper (Access to full text may be restricted) |
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Snippet | Phys.Rev.D 107 (2023) 7, 074025 The LHCb collaboration has detected a new hidden-charm pentaquark with the
quantum numbers of a $\Lambda$ baryon: the $P_{\psi... |
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SubjectTerms | Physics - High Energy Physics - Experiment Physics - High Energy Physics - Phenomenology Physics - Nuclear Theory |
Title | The $P_{\psi s}^{\Lambda}(4338)$ pentaquark and its partners in the molecular picture |
URI | https://arxiv.org/abs/2207.11144 |
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