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Bootstrapping Two-Nucleon Effective Field Theories
Q. N. Micha-Mba, M. S. Sánchez, P. G. Ortega +2
Chiral EFT yields singular potentials that require regularization and renormalization when implemented in a dynamical equation such as the Lippmann--Schwinger equation. We employ t…
Contact potentials in presence of a regular finite-range interaction using dimensional regularization and the method
David R. Entem, Juan Nieves, Jose Antonio Oller
We solve the Lippman-Schwinger equation (LSE) with a kernel that includes a regular finite-range potential and additional contact terms with derivatives. We employ distorted wave t…
Confronting the Lippmann-Schwinger equation and the method for coupled-wave separable potentials
M. S. Sánchez, J. A. Oller, D. R. Entem
We study a family of separable potentials with and without added contact interactions by solving the associated Lippmann-Schwinger equation with two coupled partial waves. The matc…
Local position-space two-nucleon potentials from leading to fourth order of chiral effective field theory
S. K. Saha, D. R. Entem, R. Machleidt +1
We present local, position-space chiral NN potentials through four orders of chiral effective field theory ranging from leading order (LO) to next-to-next-to-next-to-leading order…
Renormalization of NN Chiral EFT, my personal mixed feelings
D. R. Entem
We are celebrating thirty-years from the seminal papers from Weinberg proposing to use the rules of Chiral Perturbation Theory to nucleon systems. His proposal was to build an Effe…
Nucleon-nucleon potentials from Delta-full chiral effective-field-theory and implications
Y. Nosyk, D. R. Entem, R. Machleidt
We closely investigate NN potentials based upon the Delta-full version of chiral effective field theory. We find that recently constructed NN potentials of this kind, which (when a…