Renormalizing the NN interaction with multiple subtractions
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Artigo
Date
2010
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Nuclear Physics B - Proceedings Supplements
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1
Authors
Timoteo V.S.
Frederico T.
Delfino A.
Tomio L.
Szpigel S.
Duraes F.O.
Frederico T.
Delfino A.
Tomio L.
Szpigel S.
Duraes F.O.
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Volume Title
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Abstract
The aim of this work is to show how to renormalize the nucleon-nucleon interaction at next-to-next-to-leading order using a systematic subtractive renormalization approach with multiple subtractions. As an example, we calculate the phase shifts for the partial waves with total angular momentum J=2. The intermediate driving terms at each recursive step as well as the renormalized T-matrix are also shown. We conclude that our method is reliable for singular potentials such as the two-pion exchange and derivative contact interactions. © 2010 Elsevier B.V.