Partial Wave Analysis of Nucleon-Nucleon Scattering below pion production threshold
Abstract
We undertake a simultaneous partial wave analysis to proton-proton and neutron-proton scattering data below pion production threshold up to LAB energies of 350MeV. We represent the interaction as a sum of delta-shells in configuration space below 3fm and a charge dependent one pion exchange potential above 3fm together with electromagnetic effects. We obtain chi^2 = 2813|pp + 3985|np with a total of N = 2747|pp + 3691|np data obtained till 2013 and a total number of 46 fitting parameters yielding chi^2 /d.o.f = 1.06. Special attention is paid to estimate the errors of the phenomenological interaction as well as the derived effects on the phase-shifts and scattering amplitudes.
Keywords
Cite
@article{arxiv.1304.0895,
title = {Partial Wave Analysis of Nucleon-Nucleon Scattering below pion production threshold},
author = {R. Navarro Perez and J. E. Amaro and E. Ruiz Arriola},
journal= {arXiv preprint arXiv:1304.0895},
year = {2013}
}
Comments
8 pages, 6 figures, 2 tables. Enlarged discussion on fits and database