Systematization of basic divergent integrals in perturbation theory and renormalization group functions
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Date
2009-02
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
We show that to n loop order the divergent content of a Feynman amplitude is spanned by a set of
basic (logarithmically divergent) integrals I
(i)
log(λ2), i = 1, 2,...,n, λ being the renormalization group scale,
which need not be evaluated. Only the coefficients of the basic divergent integrals are show to determine
renormalization group functions. Relations between these coefficients of different loop orders are derived.
Description
Keywords
Integrals
Citation
Physics Letters B 673 (2009) 220–226