The low-lying hidden- and double-charm tetraquark states in a constituent quark model with instanton-induced interaction

Author:

Wang Jin-Bao,Li Gang,An Chun-Sheng,Deng Cheng-Rong,Xie Ju-Jun

Abstract

AbstractSpectrum of the low-lying hidden- and double-charm tetraquark states are investigated in a nonrelativistic quark potential model, where the instanton-induced interaction is taken as the residual spin-dependent hyperfine interaction between quarks. The model parameters are fixed by fitting the spectrum of the ground hadron states. Our numerical results show that masses of several presently studied tetraquark states are close to those of the experimentally observed candidates of exotic meson, which indicates that the corresponding compact tetraquark components may take considerable probabilities in those observed exotic states.

Publisher

Springer Science and Business Media LLC

Subject

Physics and Astronomy (miscellaneous),Engineering (miscellaneous)

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