Abstract
In a recent publication we have argued that using two very successful optical potentials [A. Bonaccorso and R. J. Charity, Phys. Rev. C 89, 024619 (2014)] and microscopic projectile densities, it is possible to build a single-folded (light-) nucleus- imaginary optical potential which is more accurate than a double-folded optical potential. By comparing to experimental reaction cross sections, we showed for , and projectiles, that a very good agreement between theory and data could be obtained with such a “bare” potential, at all but the lowest energies where a small semimicroscopic surface term was added to the single-folded potential to take into account projectile breakup. In this paper we extend this study to the case of projectiles and assess the sensitivity to the projectile density used. We then obtained the modulus of the nucleus-nucleus matrix and parametrize it in terms of a strong-absorption radius and finally extracted the phenomenological energy dependence of this radius. This approach could be the basis for a systematic study of optical potentials for light exotic nuclei scattering on light targets and/or parametrizations of the matrix. Furthermore our study will serve to make a quantitative assessment of the description of the core-target part of knockout reactions, in particular their localization in terms of impact parameters.
- Received 5 July 2016
DOI:https://doi.org/10.1103/PhysRevC.94.034604
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