Abstract
Abstract We construct a microscopic optical potential including breakup effects for the elastic scattering of weakly binding projectiles within the Glauber model, in which a nucleon–nucleus potential is derived using the $g$-matrix folding model. The derived microscopic optical potential is referred to as the eikonal potential. For $d$ scattering, calculation with the eikonal potential, i.e., the EP model, reasonably reproduces the result of the exact calculation with the continuum-discretized coupled-channels method at intermediate energies. From the properties of the EP model, the inaccuracy of the eikonal approximation used in the Glauber model is partially excluded. Also analyzed with the eikonal potential is the scattering of $^6$He from $^{12}$C, and its applicability to scattering with many-body projectiles is shown.
Highlights
Microscopic understanding of nucleon-nucleus (NA) and nucleus-nucleus (AA) optical potentials is one of the most important issues in nuclear reaction theory
We investigate the validity of the eikonal potential compared with results of continuum-discretized coupled-channels method (CDCC) with the SF model for d scattering at 20–200 MeV/nucleon, which is described by a p + n + T three-body model
We investigate d scattering from 12C and 208Pb targets at Ein/AP =20–200 MeV by using the double-single folding (DSF) model, the EP model, and CDCC
Summary
Microscopic understanding of nucleon-nucleus (NA) and nucleus-nucleus (AA) optical potentials is one of the most important issues in nuclear reaction theory. As a practical model of the DF-TDA model, we proposed the double-single folding (DSF) model for 3,4He scattering, in which the optical potential between 3,4He and the target is derived by folding the localized NA optical potential of the SF model with the 3,4He densities. CDCC is a reliable method to analyze breakup reactions, it is hard to apply CDCC to scattering of more than four-body projectiles such as 8He, because of a high computational cost. As another approach to describe excitation effects of P and T, the Glauber model [26] has been applied to analyses of AA scattering at intermediate energies.
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