Variation of heavy quarkonium binding energy with quark separation at fixed chemical potential under different temperatures and at fixed temperature under different chemical potentials. (IMAGE)
Caption
At a fixed separation between the heavy quark–antiquark pair, the absolute value of the binding energy decreases with increasing temperature and chemical potential. In other words, the binding interaction between the heavy quark–antiquark pair weakens due to thermal effects in the medium, which aligns with the physical expectation of stronger screening of interactions in a high-temperature medium. This indicates that elevated temperature and chemical potential promote the dissociation of heavy quarkonium.
Credit
Zhou Kai
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CC BY-NC