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Light- and heavy-quark symmetries and the $Y(4230)$, $Y(4360)$, $Y(4500)$, $Y(4620)$ and $X(4630)$ resonances

dc.contributor.authorPENG, Fang-Zheng
dc.contributor.authorYAN, Mao-Jun
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorSÁNCHEZ SÁNCHEZ, Mario
dc.contributor.authorPAVON VALDERRAMA, Manuel
dc.date.accessioned2023-11-20T16:50:07Z
dc.date.available2023-11-20T16:50:07Z
dc.date.issued2023
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/185070
dc.description.abstractEnThe 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.isoen
dc.subject.enLHC-B
dc.subject.enhadron spectroscopy
dc.subject.enhadron: heavy
dc.subject.enhadron: spectrum
dc.subject.enhadron: molecule
dc.subject.enheavy quark: spin
dc.subject.enheavy quark: symmetry
dc.subject.ensymmetry: flavor
dc.subject.ensymmetry: SU(3)
dc.subject.eneffective field theory
dc.subject.enY(4260)
dc.subject.enY(4360)
dc.subject.enY(4660)
dc.title.enLight- and heavy-quark symmetries and the $Y(4230)$, $Y(4360)$, $Y(4500)$, $Y(4620)$ and $X(4630)$ resonances
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevD.107.016001
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 des Hautes Energies - Réseau [hep-lat]
dc.subject.halPhysique [physics]/Physique Nucléaire Théorique [nucl-th]
dc.identifier.arxiv2205.13590
bordeaux.journalPhys.Rev.D
bordeaux.page016001
bordeaux.volume107
bordeaux.hal.laboratoriesCentre d'Études Nucléaires de Bordeaux Gradignan (CENBG)*
bordeaux.issue1
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-03693141
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03693141v1
bordeaux.COinSctx_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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