Nucleon-nucleon scattering with isobar degrees of freedom

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.35.1072· OSTI ID:6001601

Ray, L

A nonrelativistic nucleon-nucleon interaction potential model containing explicit coupling to N..delta..(1232 MeV) and /or NN/sup */(1440 MeV) channels is developed and used to describe empirical elastic scattering phase shifts from 0--1000 MeV. The theoretical Feshbach-Lomon meson exchange potential provides the starting point for describing the interaction between the two nucleons. NN..pi.. and NNNN-bar intermediate states are implicitly included through the two-pion exchange portion of the Feshbach-Lomon interaction. Short range phenomenological NN-NN potentials are used along with empirical short range and one pion exchange coupling potentials between the nucleon-nucleon and nucleon-isobar channels. Quantitative fits to the Arndt phase shifts and inelasticity parameters from 0--1000 MeV for Jless than or equal to6 are obtained. The resulting potentials are obtained in a local, coordinate space representation, convenient for use in many-body calculations at intermediate energies.

• Research Organization: Department of Physics, University of Texas at Austin, Austin, Texas 78712
• OSTI ID: 6001601
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 35:3; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON-BARYON INTERACTIONS
ELASTIC SCATTERING
ENERGY RANGE
HADRON-HADRON INTERACTIONS
INTERACTIONS
ISOBARIC NUCLEI
MANY-BODY PROBLEM
MEV RANGE
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
PARTIAL WAVES
PARTICLE INTERACTIONS
PHASE SHIFT
SCATTERING