Quark model estimate of hidden-charm pentaquark resonances

Emiko Hiyama, Atsushi Hosaka, Makoto Oka, Jean Marc Richard

研究成果: Contribution to journalArticle査読

20 被引用数 (Scopus)


A quark model, which reproduces the ground-state mesons and baryons, i.e., the threshold energies, is applied to the qqqcc configurations, where q is a light quark and c the charmed quark. In the calculation, several open channels are explicitly included such as J/ψ+N, ηc+N, Λc+D, etc. To distinguish genuine resonances and estimate their width, we employ the Gaussian expansion method supplemented by the real scaling method (stabilization). No resonance is found at the energies of the Pc(4380) and Pc(4450) pentaquarks. On the other hand, there is a sharp resonant state at 4690 MeV with a J=1/2- state and another one at 4920 MeV with a J=3/2- state which have a compact structure.

ジャーナルPhysical Review C
出版ステータス出版済み - 10 22 2018

All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学


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