- th / 9 80 20 69 v 1 2 4 Fe b 19 98 Regularization Methods for Nucleon - Nucleon Effective Field Theory

Fe b 19 98 Regularization Methods for Nucleon - Nucleon Effective Field Theory

Attempts to apply effective field theory (EFT) methods to nonrelativistic nucleon-nucleon (N N) scattering have raised questions about the nature and limitations of an EFT expansion when used nonperturbatively. We discuss the characteristics of a meaningful EFT analysis and compare them with traditional approaches to N N scattering. A key feature of an EFT treatment is a systematic expansion in...

ar X iv : n uc l - th / 9 80 60 97 v 1 2 9 Ju n 19 98 3 P 2 - 3 F 2 pairing in neutron matter with modern nucleon - nucleon potentials

l - th / 0 00 80 30 v 2 1 2 Fe b 20 01 Anti - Kaon Induced Reactions on the Nucleon ∗

Using a previously established effective Lagrangian model we describe anti-kaon induced reactions on the nucleon. The dominantly contributing channels in the cm-energy region from threshold up to 1.72 GeV are included (KN , πΣ, πΛ). We solve the Bethe-Salpeter equation in an unitary K-matrix approximation .

v 4 2 9 A pr 1 99 8 Regularization Methods for Nucleon - Nucleon Effective Field Theory

Attempts to apply effective field theory (EFT) methods to nonrelativistic nucleon-nucleon (N N) scattering have raised questions about the nature and limitations of an EFT expansion when used nonperturbatively. We discuss the characteristics of a meaningful EFT analysis and compare them with traditional approaches to N N scattering. A key feature of an EFT treatment is a systematic expansion in...

Issues of Regularization and Renormalization in Effective Field Theories of NN Scattering

The equivalence of subtractively renormalized and cut-off effective field theories is demonstrated for the example of very low energy effective field theory for the nucleon-nucleon interaction. 03.65.Nk, 11.10.Gh, 12.39.Fe, 13.75.Cs. Typeset using REVTEX 1