The dissociation of a heavy meson in the quark medium

TL;DR

This paper studies how heavy mesons break apart in different quark mediums, showing that their stability depends on temperature and chemical potential, with distinct behaviors in quark-gluon plasma and hadronic phases.

Contribution

It provides a comparative analysis of heavy meson dissociation mechanisms in quark-gluon plasma and hadronic phases, highlighting the contrasting effects of temperature and chemical potential.

Findings

Dissociation length decreases with temperature and chemical potential in quark-gluon plasma.

Dissociation length increases with chemical potential in the hadronic phase.

Different dissociation mechanisms operate in the two phases.

Abstract

We investigate the dissociation of a heavy meson in the medium composed of light quarks and gluons. In the quark-gluon plasma, the dissociation length of the heavy meson becomes short as the temperature or quark chemical potential increases. On the contrary, in the hadronic phase the dissociation length becomes large as the chemical potential increases, due to the different dissociation mechanism with one used in the quark-gluon plasma.