How to preserve symmetries with cut-off regularized integrals?
arXiv:hep-ph/0611220 · doi:10.1016/j.nuclphysa.2007.05.003
Abstract
We present a prescription to calculate the quadratic and logarithmic divergent parts of several integrals employing a cutoff in a coherent way, i.e. in total agreement with symmetry requirements. As examples we consider one-loop Ward identities for QED and a phenomenological chiral model.
11 pages, 3 graphs