The hidden-charm pentaquark and tetraquark states
نویسندگان
چکیده
منابع مشابه
Reanalysis of the mass spectrum of the scalar hidden charm and hidden bottom tetraquark states
In this article, we study the mass spectrum of the scalar hidden charm and hidden bottom tetraquark states which consist of the axial-axial type and the vector-vector type diquark pairs with the QCD sum rules. PACS number: 12.39.Mk, 12.38.Lg
متن کاملMass spectrum of the scalar hidden charm and bottom tetraquark states
In this article, we study the mass spectrum of the scalar hidden charm and bottom tetraquark states with the QCD sum rules. The numerical results are compared with the corresponding ones from a relativistic quark model based on a quasipotential approach in QCD. The relevant values from the constituent diquark model based on the constituent diquark masses and the spin-spin interactions are also ...
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In this article, we perform a systematic study of the mass spectrum of the vector hidden charm and bottom tetraquark states using the QCD sum rules. PACS number: 12.39.Mk, 12.38.Lg
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The hidden charm pentaquark Pc(4450) observed recently by the LHCb collaboration may be of molecular nature, as advocated by some unitary approaches that also predict pentaquark partners in the strangeness S = −1 sector. In this work we argue that a hidden-charm strange pentaquark could be seen from the decay of the Λb, just as in the case of the nonstrange Pc(4450), but looking into the J/ψ ηΛ...
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We investigate the mass spectrum of pentaquark baryons with anticharm quark, in quenched lattice QCD with exact chiral symmetry. By chiral extrapolation to mπ = 135 MeV, we determine the masses of the lowest lying states of the antisextet (JΠ = 1/2+) and the triplet (JΠ = 1/2), in the isospin limit (mu = md). The masses of the antisextet are: 2977(109) MeV for the iso-singlet Θc([ud][ud]c̄); 318...
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ژورنال
عنوان ژورنال: Physics Reports
سال: 2016
ISSN: 0370-1573
DOI: 10.1016/j.physrep.2016.05.004