Debye screening mass in hot QCD at three loops: Canonical form of the integrand
Abstract
The Debye screening mass is a fundamental parameter characterizing the screening of chromo-electric fields in a hot quark-gluon plasma. It plays an important role in thermal field theory, entering the description of screening lengths, transport phenomena, heavy-particle interactions in the early Universe, and the dimensional reduction program that connects thermal QCD to effective three-dimensional theories. In this contribution, we revisit the reduction strategy that serves to organize the large number of terms that contribute to the screening mass at the three-loop level, applying recent advances based on canonical forms of thermal (sum-) integrands. We emphasize the role of integration variable shifts, and discuss how canonical representations of thermal integrands may simplify future high-order calculations in hot QCD.
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BibTeX
@misc{schroder2026debye,
title = {{Debye screening mass in hot QCD at three loops: Canonical form of the integrand}},
author = {York Schröder and Miguel Váez},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.29844},
eprint = {2608.29844},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.29844},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Debye screening mass in hot QCD at three loops: Canonical form of the integrand
AU - York Schröder
AU - Miguel Váez
PY - 2026
DA - 2026/08/30
PB - arXiv
DO - 10.48550/arxiv.2608.29844
UR - https://arxiv.org/abs/2608.29844
AB - The Debye screening mass is a fundamental parameter characterizing the screening of chromo-electric fields in a hot quark-gluon plasma. It plays an important role in thermal field theory, entering the description of screening lengths, transport phenomena, heavy-particle interactions in the early Universe, and the dimensional reduction program that connects thermal QCD to effective three-dimensional theories. In this contribution, we revisit the reduction strategy that serves to organize the large number of terms that contribute to the screening mass at the three-loop level, applying recent advances based on canonical forms of thermal (sum-) integrands. We emphasize the role of integration variable shifts, and discuss how canonical representations of thermal integrands may simplify future high-order calculations in hot QCD.
ER -