Matches in SemOpenAlex for { <https://semopenalex.org/work/W2794656540> ?p ?o ?g. }
- W2794656540 abstract "A quark model, which reproduces the ground-state mesons and baryons, i.e., the threshold energies, is applied to the $qqqcoverline{c}$ configurations, where $q$ is a light quark and $c$ the charmed quark. In the calculation, several open channels are explicitly included such as $J/ensuremath{psi}+N, {ensuremath{eta}}_{c}+N, {mathrm{ensuremath{Lambda}}}_{c}+overline{D}$, 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 ${P}_{c}(4380)$ and ${P}_{c}(4450)$ pentaquarks. On the other hand, there is a sharp resonant state at 4690 MeV with a $J=1/{2}^{ensuremath{-}}$ state and another one at 4920 MeV with a $J=3/{2}^{ensuremath{-}}$ state which have a compact structure." @default.
- W2794656540 created "2018-04-06" @default.
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- W2794656540 date "2018-10-22" @default.
- W2794656540 modified "2023-10-15" @default.
- W2794656540 title "Quark model estimate of hidden-charm pentaquark resonances" @default.
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- W2794656540 doi "https://doi.org/10.1103/physrevc.98.045208" @default.
- W2794656540 hasPublicationYear "2018" @default.
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