Effective range expansion in various scenarios of EFT($\notpi$)

Abstract

Using rigorous solutions, we compare the ERE parameters obtained in three different scenarios of EFT($\notpi$) in nonperturbative regime. A scenario with unconventional power counting (like KSW) is shown to be disfavored by the PSA data, while the one with elaborate prescription of renormalization but keeping conventional power counting intact seems more promising.

6 pages, 3 tables, no figure, revtex4-1, minor revisions, to appear in EPL

References in corpus (8)

• Renormalization of chiral two-pion exchange NN interactions. Momentum vs. coordinate space
• Renormalization of Singular Potentials and Power Counting
• Subtractive renormalization of the NN scattering amplitude at leading order in chiral effective theory
• Taking dibaryon fields seriously
• The nucleon-nucleon potential beyond the static approximation
• A nonperturbative parametrization and scenario for EFT renormalization
• A note on nonperturbative renormalization of effective field theory
• Few-Body Effects in Cold Atoms and Limit Cycles