Quarkonium Binding and Entropic Force

Abstract

A Q-Qbar bound state represents a balance between repulsive kinetic and attractive potential energy. In a hot quark-gluon plasma, the interaction potential experiences medium effects. Color screening modifies the attractive binding force between the quarks, while the increase of entropy with Q-Qbar separation gives rise to a growing repulsion. We study the role of these phenomena for in-medium Q-Qbar binding and dissociation. It is found that the relevant potential for Q-Qbar binding is the free energy F; with increasing Q-Qbar separation, further binding through the internal energy U is compensated by repulsive entropic effects.

11 pages, 8 figures

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Cited by in corpus (12)

• Heavy Quarkonium in Extreme Conditions
• Thermodynamics of heavy quarkonium in magnetic field background
• Free Energy of a Heavy Quark-Antiquark Pair in a Thermal Medium from AdS/CFT
• The Effects of Minimal Length, Maximal Momentum and Minimal Momentum in Entropic Force
• D meson mass and heavy quark potential at finite temperature
• Configuration entropy of ${\rm Y}(1S)$ state in strong coupling plasma
• $J/\psi$ near $T_c$
• Dissociation of large transverse-momentum prompt J/psi produced in Pb-Pb collisions at the LHC
• Thermodynamics of the Quark-Gluon Plasma within a T-matrix approach
• Heavy Quark and Quarkonium Transport in High Energy Nuclear Collisions
• Wilson coefficients of dimension 6 gluon operators with spin indices in the heavy quark current correlation functions
• Quarkonium in a thermal BIon