Title of article
Non-perturbative construction of counterterms for 2PI-approximation Original Research Article
Author/Authors
A. Patk?s، نويسنده , , Zs. Szép، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2009
Pages
4
From page
255
To page
258
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 O(λ2) order in the skeleton truncation of Γ2PI 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.
Keywords
2PI -approximation , Renormalisation , Bethe-Salpeter equation
Journal title
Nuclear physics A
Serial Year
2009
Journal title
Nuclear physics A
Record number
1205754
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