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Correlations in alpha-alpha scattering and semi-classical optical models
Authors:Cucinotta F A  Khandelwal G S  Townsend L W  Wilson J W
Institution:Physics Department, Old Dominion University, Norfolk, VA 23508, USA.
Abstract:We show the equivalence of semi-classical solutions to optical model coupled-channel equations derived from Watson's form of the nucleus-nucleus multiple-scattering series to the Glauber multiple-scattering series. A second-order solution to the semi-classical coupled-channel elastic amplitude is shown to be nearly equivalent to a second-order optical-phase-shift approximation to the Glauber amplitude if the densities of all nuclear excited states are approximated by the ground-state density. Using the Jastrow method to model the two-body density we find an average excited-state density to be of negligible importance in the double-scattering region of alpha-alpha scattering.
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