Light- and heavy-quark symmetries and the $Y(4230)$, $Y(4360)$, $Y(4500)$, $Y(4620)$ and $X(4630)$ resonances
| dc.contributor.author | PENG, Fang-Zheng | |
| dc.contributor.author | YAN, Mao-Jun | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | SÁNCHEZ SÁNCHEZ, Mario | |
| dc.contributor.author | PAVON VALDERRAMA, Manuel | |
| dc.date.accessioned | 2023-11-20T16:50:07Z | |
| dc.date.available | 2023-11-20T16:50:07Z | |
| dc.date.issued | 2023 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/185070 | |
| dc.description.abstractEn | The heavy hadron spectrum is constrained by symmetries, of which two of the most important ones are heavy-quark spin and SU(3)-flavor symmetries. Here we argue that in the molecular picture the $Y(4230)$ (or $Y(4260)$), the $Y(4360)$ and the recently discovered $Y(4500)$ and $Y(4620)$ vector-like resonances are linked by these two symmetries. By formulating a contact-range effective field theory for the $D \bar{D}_1$ and $D_s \bar{D}_{s1}$ family of S- and P-wave charmed meson-antimeson systems, we find that if the $Y(4230)$ were to be a pure $D \bar{D}_1$ molecular state, there would be a $D^* \bar{D}_1$ partner with a mass similar to the $Y(4360)$, a $D_s \bar{D}_{s1}$ partner with a mass close to the $Y(4500)$ and three $J=1,2$$D_s^* \bar{D}_{s1}$ and $J=3$$D_s^* \bar{D}_{s2}$ bound states with a mass in the vicinity of $4630\,{\rm MeV}$, of which the first one ($J=1$) might correspond with the $Y(4620)$. The previous predictions can in turn be improved by modifying the assumptions we have used to build the effective field theory. In particular, if we consider the closeness of the $D^* \bar{D}_1$-$D^* \bar{D}_2^*$ and $D_s^* \bar{D}_{s1}$-$D_s^* \bar{D}_{s2}^*$ thresholds and include the related coupled channel dynamics, we predict a $J=2$ positive C-parity state with a mass around $4650\,{\rm MeV}$. This hidden-strange and hidden-charm state might in turn be identified with the $X(4630)$ that has been discovered past year by the LHCb in the $J/\psi \phi$ invariant mass distribution. | |
| dc.language.iso | en | |
| dc.subject.en | LHC-B | |
| dc.subject.en | hadron spectroscopy | |
| dc.subject.en | hadron: heavy | |
| dc.subject.en | hadron: spectrum | |
| dc.subject.en | hadron: molecule | |
| dc.subject.en | heavy quark: spin | |
| dc.subject.en | heavy quark: symmetry | |
| dc.subject.en | symmetry: flavor | |
| dc.subject.en | symmetry: SU(3) | |
| dc.subject.en | effective field theory | |
| dc.subject.en | Y(4260) | |
| dc.subject.en | Y(4360) | |
| dc.subject.en | Y(4660) | |
| dc.title.en | Light- and heavy-quark symmetries and the $Y(4230)$, $Y(4360)$, $Y(4500)$, $Y(4620)$ and $X(4630)$ resonances | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevD.107.016001 | |
| 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 des Hautes Energies - Réseau [hep-lat] | |
| dc.subject.hal | Physique [physics]/Physique Nucléaire Théorique [nucl-th] | |
| dc.identifier.arxiv | 2205.13590 | |
| bordeaux.journal | Phys.Rev.D | |
| bordeaux.page | 016001 | |
| bordeaux.volume | 107 | |
| bordeaux.hal.laboratories | Centre d'Études Nucléaires de Bordeaux Gradignan (CENBG) | * |
| bordeaux.issue | 1 | |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | CNRS | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-03693141 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-03693141v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Phys.Rev.D&rft.date=2023&rft.volume=107&rft.issue=1&rft.spage=016001&rft.epage=016001&rft.au=PENG,%20Fang-Zheng&YAN,%20Mao-Jun&S%C3%81NCHEZ%20S%C3%81NCHEZ,%20Mario&PAVON%20VALDERRAMA,%20Manuel&rft.genre=article |
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