How to renormalize integral equations with singular potentials in effective field theory
arXiv:2001.07040 · doi:10.1140/epja/s10050-020-00162-4
Abstract
We briefly review general concepts of renormalization in quantum field theory and discuss their application to solutions of integral equations with singular potentials in the few-nucleon sector of the low-energy effective field theory of QCD. We also describe a particular subtractive renormalization scheme and consider a specific application to a toy-model with a singular potential serving as its effective field theoretical leading-order approximation.
9 pages, 2 figures, extends the discussion, matches published version in EPJA