Elsevier

Nuclear Physics A

Volume 206, Issue 1, 14 May 1973, Pages 176-192
Nuclear Physics A

Low-energy pion-nucleus optical potentials

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Abstract

We discuss the local and non-local pion-nucleus optical potentials. We find that the local potential becomes non-local when two-nucleon correlations are included. The two potentials (including correlations) can be made local through a transformation on the wave function. The new local potentials agree up to quadratic terms when expanded in powers of the density. The influence of finite-range correlations and off-shell pion-nucleon form factors is also investigated.

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On leave from the University of Lund, Sweden.

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