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

M. Musakhanov; Sh. Baratov; N. Rakhimov

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arXiv · 1810.04998

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

M. Musakhanov·Sh. Baratov·N. Rakhimov

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Abstract

In the framework of the Instanton Liquid Model we evaluate the heavy quark $\bar{Q}Q$ 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 $Q\bar{Q}$ potential have pronounced temperature dependence, which might be tested in phenomenological analyses of charmonia production data.

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M. Musakhanov, Sh. Baratov, N. Rakhimov. 2018-10-11. Heavy quarkonium and dynamical gluon mass at non-zero temperature in instanton vacuum model. https://arxiv.org/abs/1810.04998

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