Two-loop hard thermal loops for vector bosons in general models

Abstract Hard thermal loops describe how soft gauge fields are screened and damped in hot plasmas. As such they are used to calculate transport coefficients, Sphaleron rates, equations of state, and particle production. However, most calculations are done using one-loop hard thermal loop self-energi...

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Main Author: Andreas Ekstedt
Format: Article
Language:English
Published: SpringerOpen 2023-06-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP06(2023)135
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author Andreas Ekstedt
author_facet Andreas Ekstedt
author_sort Andreas Ekstedt
collection DOAJ
description Abstract Hard thermal loops describe how soft gauge fields are screened and damped in hot plasmas. As such they are used to calculate transport coefficients, Sphaleron rates, equations of state, and particle production. However, most calculations are done using one-loop hard thermal loop self-energies. And two-loop contributions can be large. To that end this paper provides vector two-loop self-energies for generic models: any scalar, fermion, or vector representation; and all possible renormalizable terms. Several examples are given to showcase the results. Two-loop results for higher-point functions are also given.
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spelling doaj.art-a6a87ed273014757936cba798b8f88872023-09-24T11:05:51ZengSpringerOpenJournal of High Energy Physics1029-84792023-06-012023612610.1007/JHEP06(2023)135Two-loop hard thermal loops for vector bosons in general modelsAndreas Ekstedt0II. Institute of Theoretical Physics, Universität HamburgAbstract Hard thermal loops describe how soft gauge fields are screened and damped in hot plasmas. As such they are used to calculate transport coefficients, Sphaleron rates, equations of state, and particle production. However, most calculations are done using one-loop hard thermal loop self-energies. And two-loop contributions can be large. To that end this paper provides vector two-loop self-energies for generic models: any scalar, fermion, or vector representation; and all possible renormalizable terms. Several examples are given to showcase the results. Two-loop results for higher-point functions are also given.https://doi.org/10.1007/JHEP06(2023)135Finite Temperature or Finite DensityThermal Field TheoryEffective Field Theories of QCDResummation
spellingShingle Andreas Ekstedt
Two-loop hard thermal loops for vector bosons in general models
Journal of High Energy Physics
Finite Temperature or Finite Density
Thermal Field Theory
Effective Field Theories of QCD
Resummation
title Two-loop hard thermal loops for vector bosons in general models
title_full Two-loop hard thermal loops for vector bosons in general models
title_fullStr Two-loop hard thermal loops for vector bosons in general models
title_full_unstemmed Two-loop hard thermal loops for vector bosons in general models
title_short Two-loop hard thermal loops for vector bosons in general models
title_sort two loop hard thermal loops for vector bosons in general models
topic Finite Temperature or Finite Density
Thermal Field Theory
Effective Field Theories of QCD
Resummation
url https://doi.org/10.1007/JHEP06(2023)135
work_keys_str_mv AT andreasekstedt twoloophardthermalloopsforvectorbosonsingeneralmodels