Decoupling in the similarity renormalization group for nucleon-nucleon forces

Abstract

Decoupling via the similarity renormalization group (SRG) of low-energy nuclear physics from high-energy details of the nucleon-nucleon interaction is examined for two-body observables and few-body binding energies. The universal nature of this decoupling is illustrated and errors from suppressing high-momentum modes above the decoupling scale are shown to be perturbatively small.