Improved Reweighting for QCD Topology at High Temperature

2020/02/04 by P. Jahn, Jahn, P. Thomas, Guy D. Moore +3
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

paper · pdf · doi:10.48550/arxiv.2002.01153

openalex publication_date 2020/02/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In a previous paper \citeJahn:2018dke we presented a methodology for computing the topological susceptibility of QCD at temperatures where it is small and standard methods fail. Here we improve on this methodology by removing two barriers to the reweighting method's moving between topological sectors. We present high-statistics, continuum-extrapolated results for the susceptibility of pure-glue QCD up to 7 T_c. We show that the susceptibility varies with temperature as T^{-6.7± 0.3} between T=2.5 T_c and T=7 T_c, in good agreement with expectations based on the dilute instanton gas approximation.

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