Nuclear transparency to intermediate-energy nucleons from (e,ep) reactions

Phys. Rev. C 45, 791 – Published 1 February 1992
V. R. Pandharipande and Steven C. Pieper

Abstract

A simple relation between the nucleon-nucleon scattering cross sections in vacuum and in nuclear matter is proposed. It consistently takes into account the velocity dependence of the nuclear mean field and Pauli blocking, and is shown to be fairly accurate. It is used to study the mean free path of nucleons in nuclear matter and the imaginary part of the optical potential. It is also used with the local density approximation and the correlated Glauber approximation to calculate the transparency of nuclei as measured by (e,ep) reactions. The Pauli blocking, velocity dependence of the nuclear mean field, and the ground-state correlations increase the transparency, and all the three effects are necessary to explain the observed transparencies of C12, Al27, Ni58, and Ta181 for recoiling 180 MeV protons.

DOI: http://dx.doi.org/10.1103/PhysRevC.45.791

  • Received 10 October 1991
  • Published in the issue dated February 1992

© 1992 The American Physical Society

Authors & Affiliations

V. R. Pandharipande

  • Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801

Steven C. Pieper

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

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