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arXiv · 2510.13942

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

Andreas Kirchner·Berndt Müller·Jyotirmoy Roy·Chathuranga Sirimanna
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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.

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Andreas Kirchner, Berndt Müller, Jyotirmoy Roy, Chathuranga Sirimanna. 2025-10-15. A new effective field theory for heavy quarks in the quark-gluon plasma. https://doi.org/10.1007/jhep08(2026)172

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