Double differential cross sections for neutron emission induced by 256 MeV and 800 MeV protons

S. Stamer, W. Scobel, W. B. Amian, R. C. Byrd, R. C. Haight, J. L. Ullmann, R. W. Bauer, M. Blann, B. A. Pohl, J. Bisplinghoff, and R. Bonetti
Phys. Rev. C 47, 1647 – Published 1 April 1993
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Abstract

Double differential cross sections were measured for neutron emission induced by 256 MeV and 800 MeV protons incident on Li, Al, Zr, and Pb targets. The experimental spectra obtained are almost exclusively attributable to a preequilibrium emission mechanism and are compared to predictions made by several preequilibrium reaction models. The intranuclear cascade model reproduces the data quite well at both incident energies. Other approaches—the statistical multistep direct model and the hybrid model—reach the limit of applicability in their present form as the pion production threshold is crossed.

  • Received 2 November 1992

DOI:https://doi.org/10.1103/PhysRevC.47.1647

©1993 American Physical Society

Authors & Affiliations

S. Stamer and W. Scobel

  • I. Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany

W. B. Amian, R. C. Byrd, R. C. Haight, and J. L. Ullmann

  • Los Alamos National Laboratory, Los Alamos, New Mexico 87545

R. W. Bauer, M. Blann, and B. A. Pohl

  • Lawrence Livermore National Laboratory, Livermore, California 94550

J. Bisplinghoff

  • Institut für Strahlen- und Kernphysik, Universität Bonn, Bonn, Germany

R. Bonetti

  • Istituto di Fisica Generale Applicata dell’Università di Milano Istituto Nazionale di Fisica Nucleare, Sezione die Milano, Milano, Italy

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Vol. 47, Iss. 4 — April 1993

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