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Type: Artigo de periódico
Title: Renormalization Group Invariance In Pionless Effective Field Theory For The Nn System
Author: Timoteo V.S.
Szpigel S.
Duraes F.O.
Abstract: We consider the NN interaction in pionless effective field theory (EFT) up to next-to-next-to-leading order (NNLO) and use a recursive subtractive renormalization scheme to describe NN scattering in the 1S0 channel. We fix the strengths of the contact interactions at a reference scale, chosen to be the one that provides the best fit for the phase-shifts, and then slide the renormalization scale by evolving the driving terms of the subtracted Lippmann-Schwinger equation through a non-relativistic Callan-Symanzik equation. The results show that such a systematic renormalization scheme with multiple subtractions is fully renormalization group invariant. © 2010 Springer-Verlag.
Rights: fechado
Identifier DOI: 10.1007/s00601-010-0179-4
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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