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Folding analysis of the elastic [sup 6]Li+[sup 12]C scattering: Knock-on exchange effects, energy dependence, and dynamical polarization potential

Journal Article · · Physical Review, C (Nuclear Physics); (United States)
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  1. Bereich FK, Hahn-Meitner-Institut-GmbH, Glienicker Strasse 100, D-14109 Berlin (Germany) Fachbereich Physik, Frei Universitaet Berlin, D-14195 Berlin (Germany) Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6373 (United States)
Versions of the M3Y effective nucleon-nucleon interaction, with different prescriptions for the knock-on exchange contributions and density dependence, have been used in a study of the energy dependence of the nucleon optical potential in nuclear matter as well as in a systematic folding model analysis of the elastic [sup 6]Li+[sup 12]C scattering data at [ital E][sub lab]=60--318 MeV to study the energy dependence of the [sup 6]Li+[sup 12]C optical potential. Contributions from the (breakup) dynamical polarization potential to the real part of the [sup 6]Li+[sup 12]C optical potential are simulated by a surface correction using splines added to the real folded potential. This is shown to be strongest at [ital E][sub lab]=99 MeV. The correction needed to fit the data is found to be qualitatively similar to that predicted theoretically for breakup of the [sup 6]Li. The optical model analysis of the refractive [sup 6]Li+[sup 12]C scattering data, using different types of real folded potential, shows that the most successful is the folded potential built upon density-dependent interactions, which have parameters chosen to reproduce the saturation properties of nuclear matter and which predict a nuclear incompressibility [ital K] around 200 MeV.
DOE Contract Number:
AC05-84OR21400
OSTI ID:
6402696
Journal Information:
Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 51:4; ISSN 0556-2813; ISSN PRVCAN
Country of Publication:
United States
Language:
English