EPJ Web of Conferences (Apr 2010)

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

  • Durães F.O.,
  • Szpigel S.,
  • Timóteo V.S.

DOI
https://doi.org/10.1051/epjconf/20100305020
Journal volume & issue
Vol. 3
p. 05020

Abstract

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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.