https://doi.org/10.1140/epja/i2015-15071-6
Regular Article - Theoretical Physics
1S0 nucleon-nucleon scattering in the modified Weinberg approach
1
Institut für Theoretische Physik II, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, 44780, Bochum, Germany
2
SSC RF ITEP, Bolshaya Cheremushkinskaya 25, 117218, Moscow, Russia
3
Tbilisi State University, 0186, Tbilisi, Georgia
* e-mail: jgegelia@hotmail.com
Received:
8
January
2015
Revised:
20
April
2015
Accepted:
19
May
2015
Published online:
25
June
2015
Nucleon-nucleon scattering in the 1 S 0 partial wave is considered in chiral effective field theory within the renormalizable formulation of a previous work (Phys. Lett. B 716, 338 (2012)) beyond the leading-order approximation. By applying subtractive renormalization, the subleading contact interaction in this channel is taken into account non-perturbatively. For a proper choice of renormalization conditions, the predicted energy dependence of the phase shift and the coefficients in the effective range expansion are found to be in a good agreement with the results of the Nijmegen partial wave analysis.
© SIF, Springer-Verlag Berlin Heidelberg, 2015
