English

Doubly-heavy tetraquark at finite temperature in a holographic model

High Energy Physics - Phenomenology 2024-01-26 v2

Abstract

In this paper, we employ gauge/gravity duality to investigate the string breaking and melting of doubly-heavy tetraquark that includes two heavy quarks and two light antiquarks in a holographic model at finite temperature. Firstly, we investigate four configurations of QQqˉqˉ\rm{QQ\bar{q}\bar{q}} in the confined phase and consider different separation distances of the heavy quarks at varying temperatures. At high temperature, QQqˉqˉ\rm{QQ\bar{q}\bar{q}} melts at certain distances and the confined quarks are released. As the temperature continues to increase, some configurations of doubly-heavy tetraquark can not exist. Furthermore, we investigate three decay modes of QQqˉqˉ\rm{QQ\bar{q}\bar{q}} and compare the potential energy of QQqˉqˉ\rm{QQ\bar{q}\bar{q}} with that of QQq\rm{QQq} at finite temperature .

Keywords

Cite

@article{arxiv.2306.06976,
  title  = {Doubly-heavy tetraquark at finite temperature in a holographic model},
  author = {Xi Guo and Jia-Jie Jiang and Xuan Liu and Dong Xiang and Xun Chen},
  journal= {arXiv preprint arXiv:2306.06976},
  year   = {2024}
}