143 citations · 337 across the 11 of their papers we have counts for
11 papers
Two-loop HTL Thermodynamics with Quarks
Jens O. Andersen, Emmanuel Petitgirard, Michael Strickland
We calculate the quark contribution to the free energy of a hot quark-gluon plasma to two-loop order using hard-thermal-loop (HTL) perturbation theory. All ultraviolet divergences…
HTL Perturbation Theory to Two Loops
Jens O. Andersen, Eric Braaten, Emmanuel Petitgirard +1
We calculate the pressure for pure-glue QCD at high temperature to two-loop order using hard-thermal-loop (HTL) perturbation theory. At this order, all the ultraviolet divergences…
Solution to the 3-Loop -Derivable Approximation for Massless Scalar Thermodynamics
Eric Braaten, Emmanuel Petitgirard
We develop a systematic method for solving the 3-loop -derivable approximation to the thermodynamics of the massless field theory. The method involves expanding sum-integr…
Solution to the 3-loop -derivable Approximation for Scalar Thermodynamics
Eric Braaten, Emmanuel Petitgirard
We solve the 3-loop -derivable approximation to the thermodynamics of the massless field theory by reducing it to a 1-parameter variational problem. The thermodynamic pote…
Infrared and light-cone limit in hot QED
E. Petitgirard
In hot gauge theories a breakdown of the hard thermal loop expansion occurs for light-like external momenta or in the infrared region. In QED where a resummation of ladder diagrams…
Hot QED beyond ladder graphs
E. Petitgirard
At finite temperature a breakdown of the hard thermal loop expansion arises whenever external momenta are light-like or tend to very soft scales. A resummation of ladder graphs is…