Effects of nonlocal potentials in heavy-ion reactions

Journal Article · Thu Jul 01 04:00:00 EDT 1976 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.14.122· OSTI ID:7278893

Cramer, J G; DeVries, R M

A nonlocal optical model program has been written in order to investigate the effects of Gaussian nonlocal potentials on heavy-ion scattering and reactions. We have tested the two principal approximations which have been used to handle nonlocal effects in light-ion reactions, the Perey-Buck nonlocal-to-local potential transformation and the local energy approximation. We find that both of these approximations work very well for the heavy-ion reactions studied up to nonlocal ranges of about ..beta..=0.4 fm, but fail for larger ranges. Using the local energy approximation we have tested the sensitivity of distorted-wave Born-approximation calculations to the nonlocal range ..beta... For strongly absorbing potentials, values of ..beta..approximately-less-than0.4 fm cause negligible effects while weakly absorbing potentials with ..beta..=0.4 fm allow strong modifications to the predicted cross sections. (AIP)

• Research Organization: Department of Physics, University of Washington, Seattle, Washington 98195
• OSTI ID: 7278893
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 14:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
DIFFERENTIAL EQUATIONS
DWBA
ELASTIC SCATTERING
EQUATIONS
FUNCTIONS
HEAVY ION REACTIONS
NONLOCAL POTENTIAL
NUCLEAR REACTIONS
OPTICAL MODELS
SCATTERING
SCHROEDINGER EQUATION
WAVE EQUATIONS
WAVE FUNCTIONS