Non-perturbative construction of counterterms for 2PI-approximation
High Energy Physics - Phenomenology
2009-11-13 v1
Abstract
A concise method is presented for the non-perturbative computation of the counterterms renormalising 2PI-actions. The procedure is presented for a real scalar field up to lambda^2 order in the skeleton truncation of Gamma_2PI with respect to the self-coupling, and in a constant symmetry breaking background. The method is easily generalizable to field theories with arbitrary global symmetry.
Cite
@article{arxiv.0809.3551,
title = {Non-perturbative construction of counterterms for 2PI-approximation},
author = {A. Patkos and Zs. Szep},
journal= {arXiv preprint arXiv:0809.3551},
year = {2009}
}
Comments
4 pages, poster presented at Strong and Electroweak Matter (SEWM2008), Amsterdam,August 25-29 2008