2021/11/05 by A. Yu. Kotov, Kotov, A. Yu., M. P. Lombardo +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2111.03406
openalex publication_date 2021/11/05 · openalex created_date 2022/09/26 · openalex updated_date 2026/07/28
We investigate the thermal QCD phase transition and its scaling properties on the lattice. The simulations are performed with Nf=2+1+1 Wilson twisted mass fermions at pion masses from physical up to heavy quark regime. We introduce a novel chiral order parameter, which is free from linear mass contributions and turns out to be very useful for the study of scaling behaviour. Our results are compatible with O(4) universal scaling for the physical pion mass and the temperature range [120:300] MeV. Violations to scaling at larger masses and other possible scenarios, including mean field behaviour and Z(2) scaling scenario are also discussed. We provide an estimation for the critical temperature in the chiral limit T0.