Practical Calculational Scheme Implementing the Wilsonian RG Results for Nuclear Effective Field Theory Including Pions

H. Kubo, Koji Harada, T. Sakaeda, Y. Yamamoto

Research output: Contribution to journalArticle

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Abstract

On the basis of the Wilsonian renormalization group (WRG) analysis of nuclear effective field theory (NEFT) including pions, we propose a practical calculational scheme in which the short-distance part of one-pion exchange (S-OPE) is removed and represented as contact terms. The long-distance part of one-pion exchange (L-OPE) is treated as perturbation. The use of dimensional regularization (DR) for diagrams consisting only of contact interactions considerably simplifies the calculation of scattering amplitude and the renormalization group equations. NLO results for nucleon-nucleon elastic scattering in the S-waves are obtained and compared with experiments. A brief comment on NNLO calculations is given.

Original languageEnglish
Pages (from-to)245-249
Number of pages5
JournalFew-Body Systems
Volume54
Issue number1-4
DOIs
Publication statusPublished - Jan 1 2013

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pions
nucleon-nucleon scattering
scattering amplitude
S waves
electric contacts
elastic scattering
diagrams
perturbation
interactions

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Practical Calculational Scheme Implementing the Wilsonian RG Results for Nuclear Effective Field Theory Including Pions. / Kubo, H.; Harada, Koji; Sakaeda, T.; Yamamoto, Y.

In: Few-Body Systems, Vol. 54, No. 1-4, 01.01.2013, p. 245-249.

Research output: Contribution to journalArticle

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