Perturbation theory and non-perturbative renormalization flow in scalar field theory at finite temperature

Simple item page
dc.creatorBlaizot, Jean-Paul
dc.creatorIpp, Andreas
dc.creatorMendez-Galain, Ramon
dc.creatorWschebor, Nicolas
dc.date2006-09-30
dc.date2006-11-28
dc.date.accessioned2026-07-07T10:25:33Z
dc.date.available2026-07-07T10:25:33Z
dc.descriptionWe use the non-perturbative renormalization group to clarify some features of perturbation theory in thermal field theory. For the specific case of the scalar field theory with O(N) symmetry, we solve the flow equations within the local potential approximation. This approximation reproduces the perturbative results for the screening mass and the pressure up to order g^3, and starts to differ at order g^4. The method allows a smooth extrapolation to the regime where the coupling is not small, very similar to that obtained from a simple self-consistent approximation.
dc.description42 pages, 19 figures; v2: typos corrected and references added, version accepted for publication in Nucl. Phys. A
dc.identifierhttps://arxiv.org/abs/hep-ph/0610004
dc.identifierhttp://arxiv.org/abs/hep-ph/0610004
dc.identifierNucl.Phys.A784:376-406,2007
dc.identifierdoi:10.1016/j.nuclphysa.2006.11.139
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176579
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titlePerturbation theory and non-perturbative renormalization flow in scalar field theory at finite temperature
dc.typetext

Files

Collections

arXiv