Identifying an $\mathrm{X}(3872)$ tetraquark state versus a molecular state by formation time, velocity and temperature in relativistic nuclear collisions

Zhi-Lei She, An-Ke Lei, Yu-Liang Yan +7

The production of exotic hadron $\mathrm{X}(3872)$ in $pp$ collisions at $\sqrt{s}=2.76\mathrm{TeV}$ is investigated by the parton and hadron cascade model PACIAE in this work. In the…