In a Bayesian holographic QCD model, rising temperature and baryon chemical potential lower the quarkonium dissociation distance and make binding energy vanish at smaller separation, promoting dissociation.
Potential and string breaking of doubly heavy baryon at finite temperature and chemical potential
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abstract
Using gauge/gravity duality, we first study the string breaking and melting of doubly heavy baryon at a finite chemical potential and temperature in this paper. The decay mode $\rm{Q Q q \rightarrow Q q q+Q \bar{q}}$ is investigated with the presence of temperature and chemical potential in this paper. With the increase of temperature and chemical potential, string breaking takes place at a smaller potential energy and the string-breaking distance will increase slightly. It is also found that the $\rm{QQq}$ melts at small separate distance with the increase of temperature and chemical potential. Then, we compare the screening distance of $\rm{QQq}$ with $\rm{Q \bar{Q}}$ under the same conditions. Finally, we draw the melting diagram of $\rm{QQq}$ and $\rm{Q \bar{Q}}$ in the $T-\mu$ plane.
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Thermodynamics of Heavy Quarkonium in a Bayesian Holographic QCD model
In a Bayesian holographic QCD model, rising temperature and baryon chemical potential lower the quarkonium dissociation distance and make binding energy vanish at smaller separation, promoting dissociation.