Investigation of the coupling potential by means of S-matrix inversion

Boztosun, I and Mackintosh, R.S. (2002). Investigation of the coupling potential by means of S-matrix inversion. Physical Review C, 66(064602)



We investigate the inelastic coupling interaction by studying its effect on the elastic scattering potential, as determined by inverting the elastic scattering S matrix. We first address the effect upon the real and imaginary elastic potentials of including excited states of the target nucleus. We then investigate the effect of a recently introduced coupling potential that has been remarkably successful in reproducing the experimental data for the 12C+12C, 12C+24Mg, and 16O+28Si reactions over a wide range of energies. This coupling potential has the effect of deepening the real elastic potential in the surface region, thereby explaining a common feature of many phenomenological potentials. It is suggested that one can relate this deepening to the superdeformed state of the compound nucleus 24Mg.

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