Abstract

The first two terms of the low-density expansion of the optical potential in nuclear matter are computed starting from the Hamman-Ho-Kim separable nucleon-nucleon interaction. A Monte Carlo method is used to calculate the second order contribution. The lifetime of 1s hole states in light nuclei is computed by means of a local density expansion. The effect of renormalization corrections and the E-dependence of the optical potential in relation to the hole state widths are discussed.

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