A new effective field theory for heavy quarks in the quark-gluon plasma
arXiv:2510.13942 · doi:10.1007/JHEP08(2026)172
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.
20 pages, 8 figures, title changed, figures changed, typos fixed, journal version