Infrared Behavior of the Pressure in $g φ^3$ Theory Reexamined

Details Infrared Behavior of the Pressure in $g φ^3$ Theory Reexamined Infrared Behavior of the Pressure in $g φ^3$ Theory Reexamined

2004-08-03

arxiv.org/abs/hep-ph/0408051v3

Phys.Rev. D70 (2004) 065019

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex4, 7 pages, 1 figure

Scientific paper

10.1103/PhysRevD.70.065019

We reinvestigate the infrared behavior of the pressure in the $g \phi^3$ scalar theory in six dimensions. This problem was first studied by Almeida and Frenkel and more recently by Carrington et al., that certified their results under certain approximations. We employ an alternative technique, instead of the approximation methods necessary to truncate the Schwinger-Dyson equations, often considered to calculate the pressure nonperturbatively. A daisy-type sum, implemented through the modified self-consistent resummation (MSCR), is enough to take care of the infrared divergences ensuring the finiteness of the pressure.

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