17–24 Jul 2024
Prague
Europe/Prague timezone

Non-perturbative thermal QCD at very high temperatures

20 Jul 2024, 17:00
15m
North Hall

North Hall

Parallel session talk 06. Strong Interactions and Hadron Physics Strong interactions and Hadron Physics

Speaker

Leonardo Giusti (Universita & INFN, Milano-Bicocca (IT))

Description

We present a novel strategy based on the step-scaling technique to study non-perturbatively thermal QCD up to very high temperatures. As a first concrete application, we compute the meson and baryonic screening masses with a precision of a few per mille in the temperature range from approximately 1 GeV up to the electroweak scale in the theory with three massless quarks. We observe a clear splitting between the vector and the pseudoscalar meson screening masses up to the highest temperature investigated. A comparison with the high-temperature effective theory shows that the one-loop perturbative matching with QCD does not provide a satisfactory description of the non-perturbative data up to the highest temperature considered.

Alternate track 07. Heavy Ions
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Authors

Leonardo Giusti (Universita & INFN, Milano-Bicocca (IT)) Tim Harris (University of Edinburgh) Davide Laudicina Dr Michele Pepe (INFN - National Institute for Nuclear Physics) Pietro Rescigno (University of Milano Bicocca & INFN)

Presentation materials