Heavy quarkonium and dynamical gluon mass at non-zero temperature in instanton vacuum model

2018/10/11 by M.M. Musakhanov, Musakhanov, M., Sh. Baratov +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1810.04998

openalex publication_date 2018/10/11 · openalex created_date 2018/10/26 · openalex updated_date 2026/07/28

Abstract

In the framework of the Instanton Liquid Model we evaluate the heavy quark QQ potential at nonzero temperature T. The potential has two components: contribution due to direct interaction with instantons, and the modification of the one-gluon exchange contribution via instanton-generated dynamical \char`"electric\char`" gluon mass M_el(q,T). We conclude that the nonperturbative ILM contributions to the QQ potential have pronounced temperature dependence, which might be tested in phenomenological analyses of charmonia production data.

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