Regular Article - Theoretical Physics
Strange hidden-charm tetraquarks in constituent quark model
Department of Physics, Nanjing Normal University, 210023, Nanjing, People’s Republic of China
2 School of Physics, Southeast University, 210094, Nanjing, People’s Republic of China
Accepted: 6 December 2021
Published online: 15 December 2021
In the framework of the chiral quark model (ChQM), we systematically investigate the strange hidden-charm tetraquark systems with two structures: and . The bound-state calculation shows that there is no any bound state in present work, which excludes the molecular state explanation () of the reported or . However, the effective potentials for the systems show the possibility of some resonance states. By applying a stabilization calculation and coupling all channels of both two structures, two new resonance states are obtained, which are the state with the energy around 4111–4116 MeV and the state with energy around 4113–4119 MeV, respectively. Both of them are worthy of search in future experiments. Our results show that the coupling calculation between the bound channels and open channels is indispensable to provide the necessary information for experiments to search for exotic hadron states.
© The Author(s) 2021
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