arXiv subjects

Jiajia Qin

Publications and source records attributed to Jiajia Qin.

3 recordsLinked to original sources

arXiv2023

String-breaking of the triply heavy baryon at finite temperature and chemical potential

In this work, we use gauge/gravity duality to study potential energy and string-breaking of triply heavy baryons at finite temperature and chemical potential. Two different possible configurations of triply heavy baryon are considered. The effect of temperature and chemical potential on string-breaking distance is investigated. With increasing temperature/chemical potential, the sting-breaking distance decreases and then increases in symmetric collinear geometry while steadily increasing in equilateral triangle geometry. Our study provides insights into triply heavy baryon configuration and string-breaking behavior.

hep-ph↗

arXiv2022

Three-quark potential at finite temperature and chemical potential

Using gauge/gravity duality, we study the potential energy and the melting of triply heavy baryon at finite temperature and chemical potential in this paper. First, we calculate three-quark potential and compare the results with quark-antiquark potential. With the increase of temperature and chemical potential, the potential energy will decrease at large distances. It is found that the three-quark potential will have an endpoint at high temperature and/or large chemical potential, which means triply heavy baryons will melt at enough high temperature and/or large chemical potential. We also discuss screening distance which can be extracted from the three-quark potential. At last, we draw the melting diagram of triply heavy baryons in the $T-μ$ plane.

hep-ph↗

arXiv2017

New results on heavy-flavour in heavy-ion collisions with LHCb

Heavy-flavour quarks are important to probe Quark-Gluon Plasma(QGP) properties. Cold Nuclear Matter(CNM) effects can be accessed by $p$Pb collisions. LHCb is a heavy-flavour precision experiment and has collected large collision data samples. Production cross-section measurements of prompt $D^{0}$ at $\sqrt{s_\mathrm{NN}}$= 5 TeV and $J/ψ$ at $\sqrt{s_\mathrm{NN}}$= 8.16 TeV are presented.

hep-ex↗