Tackling the infrared problem of thermal QCD
Y. Schroder (MIT, LNS)
TL;DR
This paper addresses the infrared divergences in thermal QCD perturbative calculations by evaluating a key coefficient within dimensionally reduced effective theories, advancing the understanding of high-temperature quark-gluon plasma.
Contribution
It provides a detailed continuum evaluation of the highest perturbative coefficient necessary for overcoming infrared issues in thermal QCD using effective theories.
Findings
Successful continuum calculation of the perturbative coefficient
Enhanced understanding of infrared divergences in thermal QCD
Improved methods for high-temperature QCD computations
Abstract
Perturbative calculations of corrections to the behavior of an ideal gas of quarks and gluons, the limit that is formally realized at infinite temperature, are obstructed by severe infrared divergences. The limits to computability that the infrared problem poses can be overcome in the framework of dimensionally reduced effective theories. Here, we give details on the evaluation of the highest perturbative coefficient needed for this setup, in the continuum.
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