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.

8 pages, 6 figures, 2 tables. Enlarged discussion on fits and database

References in corpus (6)

• Chiral effective field theory and nuclear forces
• Updated analysis of NN elastic scattering to 3 GeV
• Covariant spectator theory of np scattering: Phase shifts obtained from precision fits to data below 350 MeV
• Renormalization of chiral two-pion exchange NN interactions. Momentum vs. coordinate space
• Measurement of the Neutron-Proton and Neutron-Carbon Total Cross Section from 150 to 800 keV
• Neutron-proton analyzing power at 12 MeV and inconsistencies in parametrizations of nucleon-nucleon data

Cited by in corpus (47)

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• Bootstrapping the statistical uncertainties of NN scattering data
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