English

Possible triply heavy tetraquark states

High Energy Physics - Phenomenology 2023-03-15 v3

Abstract

In the present work, the triply heavy tetraquarks states QQQˉqˉQQ\bar{Q}\bar{q} with Q=(c,b)Q=(c, b) and q=(u,d,s)q=(u, d, s) with all possible quantum numbers are systematically investigated in the framework of the chiral quark model with the resonance ground method. Two kinds of structures, including the meson-meson configuration (the color-singlet channels and the hidden-color channels) and the diquark-antidiquark configuration (the color sextet-antisextet and the color triplet-antitriplet), are considered. In the considered system, several bound states are obtained for the cccˉqˉcc\bar{c}\bar{q^{'}}, bbcˉqˉbb\bar{c}\bar{q^{'}} and bccˉqˉbc\bar{c}\bar{q} tetraquarks. From the present estimations, we find that the coupled channel effect is of great significance for forming the below thresholds tetraquark states, which are stable for strong decays.

Keywords

Cite

@article{arxiv.2205.08281,
  title  = {Possible triply heavy tetraquark states},
  author = {Xuejie Liu and Yue Tan and Dianyong Chen and Hongxia Huang and Jialun Ping},
  journal= {arXiv preprint arXiv:2205.08281},
  year   = {2023}
}