Brito, L.C.T.; Fargnoli, H.G.; Scarpelli, A.P. Baêta; Sampaio, Marcos; Nemes, M.C.
(Elsevier, 2009-02)
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 ...