Nucleon-Nucleon and Pion-Nucleon Potentials from Phase Shifts using Quantum Inversion

Details Nucleon-Nucleon and Pion-Nucleon Potentials from Phase Shifts using Quantum Inversion Nucleon-Nucleon and Pion-Nucleon Potentials from Phase Shifts using Quantum Inversion

1994-09-27

arxiv.org/abs/nucl-th/9409022v2

Physics

Nuclear Physics

Nuclear Theory

Presented at the International Conference on Physics with GeV Particle Beams, August 22.-25., 1994, Juelich, Germany. 4 Pages

Scientific paper

NN and Pi-N partial wave radial potentials have been generated using the latest SM94-VPI(NN) and FA93-VPI(Pi-N) phase shifts. The potentials are used to determine the deuteron properties and to compute the 3H and 3He binding energies. The e_1 mixing angles of SM94-VPI and NY93-Nijmegen differ significantly and inversion potentials yield a P_d of 6.37% and 5.78%, respectively. Underbinding of 3H and 3He is enhanced by SM94, which signals more nonlocality and/or three-body potential effects than predicted from Nijmegen phase shifts and boson exchange models. The local pion-nucleon S_31, P_31 and P_33 channel potentials have been generated for guidance and to obtain a quantitative impression in r-space of what the Pi-N FA93-VPI phase shifts imply.

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