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arXiv · 2001.07040

How to renormalize integral equations with singular potentials in effective field theory

E. Epelbaum·A. M. Gasparyan·J. Gegelia·Ulf-G. Meißner·X. -L. Ren
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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.

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E. Epelbaum, A. M. Gasparyan, J. Gegelia, Ulf-G. Meißner, X. -L. Ren. 2020-01-20. How to renormalize integral equations with singular potentials in effective field theory. https://doi.org/10.1140/epja/s10050-020-00162-4

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