Tetraquarks with charm in coupled-channel formalism

Abstract

The relativistic four-quark equations are found in the framework of coupled-channel formalism. The dynamical mixing of the meson-meson states with the four-quark states is considered. The approximate solutions of these equations using the method based on the extraction of leading singularities of the amplitudes are obtained. The four-quark amplitudes of cryptoexotic mesons including the quarks of three flavours (u, d, s) and the charmed quark are constructed. The poles of these amplitudes determine the masses of tetraquarks. The mass values of low-lying tetraquarks are calculated.

21 pages, pdf, minor typos in the text corrected

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Cited by in corpus (8)

• New Charmonium States in QCD Sum Rules: a Concise Review
• Open charm and bottom tetraquarks in an extended relativized quark model
• Masses of tetraquarks with open charm and bottom
• Masses of open charm and bottom tetraquark states in a relativized quark model
• Masses of Heavy and Light Scalar Tetraquarks in a Non-Relativistic Quark Model
• Exploration of charmed pentaquarks
• S-wave bottom tetraquarks
• Negative parity tetraquarks with the open charm