Elsevier

Nuclear Physics A

Volume 430, Issue 3, 3 December 1984, Pages 525-538
Nuclear Physics A

Antiproton-nucleus scattering with self-consistent model for medium corrections

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Abstract

The antiproton-nucleon t-matrix with propagation in the nuclear medium is calculated selfconsistently and applied to the construction of optical potentials for the elastic scattering of antiprotons from nuclei. We find that this treatment gives results that are sensitive to medium corrections even though the strong absorption acts to mask these corrections partially. The agreement with scattering experiments at 46.8 MeV on 12C is very good. We compare potentials containing medium corrections to those based on free pN amplitudes for 12C and 40Ca. The local approximation to the optical potential is found attractive at low energies, becoming shallower with increasing bombardment energy in the range considered here (up to about EL = 120 MeV).

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Work supported in part by the US-Israel Binational Science Foundation, by the Fund for Basic Research of the Israel Academy of Sciences and Humanities, and by the Yuval Ne'eman Chair in Theoretical Nuclear Physics at Tel Aviv University.

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