Predictions of the Strange partner of $T_{cc}$ in the quark delocalization color screening model

Abstract

Inspired by the detection of $T_{cc}$ tetraquark state by LHCb Collaboration, we preform a systemical investigation of the low-lying doubly heavy charm tetraquark states with strangeness in the quark delocalization color screening model in the present work. Two kinds of configurations, the meson-meson configuration and diquark-antidiquark configuration, are considered in the calculation. Our estimations indicate that the coupled channel effects play important role in the multiquark system, and a bound state with $J^P=1^{+}$ and a resonance state with $J^P=0^{+}$ have been predicted. The mass of the bound state is evaluated to be $(3971\sim 3975)$ MeV, while the mass and width of the resonance are determined to be $(4113\sim 4114)$ MeV and $(14.3\sim 16.1)$ MeV, respectively.

Comments: 12 pages, 4 figure, 7 tables