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SUMMARY:Non-perturbative thermal QCD up to the electroweak scale
DTSTART:20260316T133000Z
DTEND:20260316T150000Z
DTSTAMP:20260513T173700Z
UID:indico-event-50804@agenda.infn.it
DESCRIPTION:Speakers: Michele Pepe (INFN\, Milano Bicocca)\n\nStudying QCD
  at high temperatures is essential for understanding the properties of str
 ongly interacting matter and its role in the evolution of the early Univer
 se. I present recent non-perturbative lattice results on the thermodynamic
 s and long-distance properties of QCD in the high-temperature regime. In p
 articular\, I discuss a determination of the QCD Equation of State with th
 ree massless quark flavours over a wide range of temperatures\, from the e
 lectroweak scale down to about 3 GeV\, smoothly connecting to the low-temp
 erature regime. I will also present results for mesonic and baryonic scree
 ning masses at high temperatures. The comparison with perturbative predic
 tions shows that\, even at temperatures approaching the electroweak scale\
 , the non-perturbative results can be reproduced only when higher-order te
 rms in the strong-coupling expansion\, including non-perturbative contribu
 tions\, are taken into account. The strategy that allows the investigation
  of QCD in this previously unexplored high-temperature regime combines shi
 fted boundary conditions with a definition of the lines of constant physic
 s based on the running of a non-perturbatively defined renormalized coupli
 ng. This methodology is general and can be applied to QCD with four or fiv
 e massive quark flavors.\n\nhttps://agenda.infn.it/event/50804/
LOCATION:Aula Conversi (Dip. di Fisica - Edificio G. Marconi)
URL:https://agenda.infn.it/event/50804/
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