Short range effects in nucleon-nucleus scattering
Conference
·
· AIP Conf. Proc.; (United States)
OSTI ID:6645676
The character of the two-nucleon wave function within the range of the interaction potential is manifested in intermediate energy nucleon-nucleus scattering via off-shell effects and a resulting non-locality of the T operator. I present here a study of the off-shell and non-local behavior of the free nucleon-nucleon T matrix for the RSC and Paris potentials in the energy regime between 100 and 350 MeV. We find the following results: (1) The off-shell amplitudes for the two potentials are strikingly similar, both for the individual partial waves and for the central and spin-orbit parts of the amplitude, despite large differences in the momentum-space matrix elements of the potential. (2) The amplitudes are strongly non-local. (3) Although they are non-local, they are nearly independent of the angle between the vectors k-k' and k+k', and they vary very slowly with energy in the regime considered. This reduces a function of 4 variables to a function of 2. (4) Elastic scattering calculations using the free non-local T operator in an approximate way give results comparable to the Love-Franey Ansatz.
- Research Organization:
- Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742
- OSTI ID:
- 6645676
- Report Number(s):
- CONF-8410202-
- Conference Information:
- Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 128:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
BARYON-BARYON INTERACTIONS
COUPLING
ELASTIC SCATTERING
ENERGY RANGE
HADRON-HADRON INTERACTIONS
INELASTIC SCATTERING
INTERACTIONS
INTERMEDIATE COUPLING
L-S COUPLING
MATRICES
MEV RANGE
MEV RANGE 100-1000
NUCLEON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON POTENTIAL
OPTICAL MODELS
PARTICLE INTERACTIONS
POTENTIALS
S MATRIX
SCATTERING
SCATTERING AMPLITUDES
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
BARYON-BARYON INTERACTIONS
COUPLING
ELASTIC SCATTERING
ENERGY RANGE
HADRON-HADRON INTERACTIONS
INELASTIC SCATTERING
INTERACTIONS
INTERMEDIATE COUPLING
L-S COUPLING
MATRICES
MEV RANGE
MEV RANGE 100-1000
NUCLEON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON POTENTIAL
OPTICAL MODELS
PARTICLE INTERACTIONS
POTENTIALS
S MATRIX
SCATTERING
SCATTERING AMPLITUDES