Five-flavor pentaquarks and other light- and heavy-flavor symmetry partners of the LHCb hidden-charm pentaquarks
| dc.contributor.author | PENG, Fang-Zheng | |
| dc.contributor.author | LIU, Ming-Zhu | |
| dc.contributor.author | PAN, Ya-Wen | |
| 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.issued | 2022 | |
| dc.description.abstractEn | The discovery of three pentaquark peaks — the Pc(4312), Pc(4440) and Pc(4457) — by the LHCb collaboration has a series of interesting consequences for hadron spectroscopy. If these hidden-charm objects are indeed hadronic molecules, as suspected, they will be constrained by heavy-flavor and SU(3)-flavor symmetries. The combination of these two symmetries will imply the existence of a series of five-flavor pentaquarks with quark content b¯csdu and bc¯sdu, that is, pentaquarks that contain each of the five quark flavors that hadronize. In addition, from SU(3)-flavor symmetry alone we expect the existence of light-flavor partners of the three Pc pentaquarks with strangeness S=−1 and S=−2. The resulting structure for the molecular pentaquarks is analogous to the light-baryon octet — we can label the pentaquarks as PQ′Q¯N, PQ′Q¯Λ, PQ′Q¯Σ, PQ′Q¯Ξ depending on their heavy- and light-quark content (with N, Λ, Σ, Ξ the member of the light-baryon octet to which the light-quark structure resembles and Q′, Q¯ the heavy quark-antiquark pair). In total we predict 45 new pentaquarks from heavy- and light-flavor symmetries alone, which extend up to 109 undiscovered states if we also consider heavy-quark spin symmetry. If an isoquartet (I=3/2) hidden-charm pentaquark is ever observed, this will in turn imply a second multiplet structure resembling the light-baryon decuplet: PQ′Q¯Δ, PQ′Q¯Σ⁎, PQ′Q¯Ξ⁎, PQ′Q¯Ω. | |
| dc.language.iso | en | |
| dc.subject.en | heavy quark: symmetry | |
| dc.subject.en | heavy quark: spin | |
| dc.subject.en | quark antiquark: pair | |
| dc.subject.en | quark: flavor | |
| dc.subject.en | flavor: SU(3) | |
| dc.subject.en | pentaquark | |
| dc.subject.en | structure | |
| dc.subject.en | LHC-B | |
| dc.subject.en | hadron spectroscopy | |
| dc.subject.en | strangeness | |
| dc.subject.en | multiplet | |
| dc.subject.en | decuplet | |
| dc.title.en | Five-flavor pentaquarks and other light- and heavy-flavor symmetry partners of the LHCb hidden-charm pentaquarks | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.nuclphysb.2022.115936 | |
| 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 | 1907.05322 | |
| bordeaux.journal | Nucl.Phys.B | |
| bordeaux.page | 115936 | |
| bordeaux.volume | 983 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02223021 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02223021v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nucl.Phys.B&rft.date=2022&rft.volume=983&rft.spage=115936&rft.epage=115936&rft.au=PENG,%20Fang-Zheng&LIU,%20Ming-Zhu&PAN,%20Ya-Wen&S%C3%81NCHEZ%20S%C3%81NCHEZ,%20Mario&PAVON%20VALDERRAMA,%20Manuel&rft.genre=article |
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