EPJ Web of Conferences 3, 05020 (2010)
https://doi.org/10.1051/epjconf/20100305020

Similarity renormalization group evolution of N N interactions within a subtractive renormalization scheme

¹ Faculdade de Tecnologia, Universidade Estadual de Campinas 13484-332 Limeira, SP, Brasil
² Centro de Ciências e Humanidades, Universidade Presbiteriana Mackenzie 01302-907, São Paulo, SP, Brasil

Abstract

We apply the similarity renormalization group (SRG) approach to evolve a nucleon-nucleon (N N) interaction in leading-order (LO) chiral effective field theory (ChEFT), renormalized within the framework of the subtracted kernel method (SKM). We derive a fixed-point interaction and show the renormalization group (RG) invariance in the SKM approach. We also compare the evolution of N N potentials with the subtraction scale through a SKM RG equation in the form of a non-relativistic Callan-Symanzik (NRCS) equation and the evolution with the similarity cutoff through the SRG transformation.