Dynamic polarization potentials for the halo nucleus He 6 in medium-energy elastic scattering

Citation:
Abu-Ibrahim, B., and Y. Suzuki, "Dynamic polarization potentials for the halo nucleus He 6 in medium-energy elastic scattering", Physical Review C, vol. 70, pp. 011603(R) , 2004.

Abstract:

We study dynamic polarization potentials for a halo nucleus He 6 scattered by a C 12 target in the eikonal approximation. We use a realistic, six-nucleon wave function of He 6 to include both the halo-neutron and the core-nucleon excitations on an equal footing. We discuss the energy dependence of the polarization potential in relation to that of the nucleon-target optical potential. The imaginary part of the polarization potential changes a sign (negative to positive with increasing energy) around the incident energy of 200MeV∕nucleon , which gives different contributions, depending on the energy, to the elastic differential cross section as well as the reaction cross section.

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