Similarity renormalization group evolution of $NN$ interactions within a subtractive renormalization scheme

Details Similarity renormalization group evolution of $NN$ interactions within a subtractive renormalization scheme Similarity renormalization group evolution of $NN$ interactions within a subtractive renormalization scheme

2011-04-24

arxiv.org/abs/1104.4643v1

EPJ Web of Conferences 3, 05020 (2010)

Physics

Nuclear Physics

Nuclear Theory

Talk given at 19th International IUPAP Conference on Few-Body Problems in Physics (FB19), Bonn, Germany, August 31st - Septemb

Scientific paper

10.1051/epjconf/20100305020

We apply the similarity renormalization group (SRG) approach to evolve a nucleon-nucleon ($NN$) 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 $NN$ 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.

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