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arXiv:2510.13942·v2·High Energy Physics — Phenomenology

A new effective field theory for heavy quarks in the quark-gluon plasma

Andreas Kirchner🇺🇸 · Berndt Müller🇺🇸 · Jyotirmoy Roy🇺🇸 · Chathuranga Sirimanna🇺🇸

Abstract

An effective field theory framework is developed to study the interaction of heavy quarks in strongly coupled quark-gluon plasma (QGP). The latter is treated as a relativistic non-dissipative colorless fluid which can be studied using a derivatively coupled effective field theory based on previous work. Coupling this to heavy quarks provides a systematic way to obtain the interaction between the heavy quark and phonons, excitations of the fluid. In particular we calculate the quasiparticle width of heavy quark to phonon and phonon-heavy quark scattering in a thermal medium.

Comments: 20 pages, 8 figures, title changed, figures changed, typos fixed, journal version