Simulating lattice QCD at finite temperature and zero quark mass

2004/08/04 by J. B. Kogut, Kogut, J. B., D. K. Sinclair +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat

paper · pdf · doi:10.48550/arxiv.hep-lat/0408003

13 pages, LaTeX, 5 figures. Talk presented at the Workshop on QCD in Extreme Environments, Argonne National Laboratory, 29th June to 3rd July, 2004

arxiv created 2004/08/04 · openalex publication_date 2004/08/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We simulate lattice QCD with an irrelevant chiral 4-fermion interaction which allows us to simulate at zero quark mass. This enables us to study the finite-temperature chiral-symmetry-restoring phase transition for 2 massless quark flavours, which is believed to be second order. In particular, it enables us to estimate the critical exponents which characterize the universality class of this transition. Our earlier simulations on N_t=4 and N_t=6 lattices revealed that finite lattice-spacing artifacts on such coarse lattices affect the nature of the transition. We are now simulating on N_t=8 lattices (12³ × 8, 16³ × 8 and 24³ × 8 lattices) where we expect to expose the continuum behaviour of this transition.

Related

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