Tackling the infamous g⁶ term of the QCD pressure

2022/07/20 by Pablo Navarrete, Navarrete, Pablo, York Schröder +1 · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2207.10151

Abstract

We report on ongoing efforts to tackle an important open problem in QCD thermodynamics, namely an evaluation of the pressure to order g⁶ in a weak-coupling expansion, corresponding to four loops. In particular, we identify a class of contributing Feynman sum-integrals with lower-loop factors, describe the formalism to tensor decompose those, and manage to map them onto scalar master sum-integrals that have already been evaluated in the literature.

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• SIRENA -- Sum-Integral REductioN Algorithm

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