Apr 4 – 10, 2022
Auditorium Maximum UJ
Europe/Warsaw timezone
Proceedings submission deadline extended to August 15, 2022

Fermion spectral function in a highly occupied non-Abelian plasma

Apr 6, 2022, 7:18 PM
Poster QCD matter at finite temperature and density Poster Session 2 T03


Kirill Boguslavski (Vienna University of Technology (AT))


Motivated by the quark-gluon plasma, we develop a simulation method to obtain the spectral function of fermions non-perturbatively in a non-Abelian gauge theory with large gluon occupation numbers. We apply our method to a non-Abelian plasma close to a far-from-equilibrium self-similar regime, and find very good agreement with perturbative hard loop (HTL) calculations for medium-induced masses, dispersion relations and quasiparticle residues. For the first time, we extract the full momentum dependence of the damping rate of fermionic collective excitations, and compare our results to recent non-perturbative extractions of gluonic spectral functions.

Primary authors

Kirill Boguslavski (Vienna University of Technology (AT)) Soeren Schlichting (Universität Bielefeld) Tuomas Lappi

Presentation materials