Total Cross Section of Protons for 2.5-MeV Neutrons

J. C. Davis; K. A. Weaver; D. Hilscher; H. H. Barschall; A. B. Smith

doi:10.1103/PhysRevC.4.1061

Total Cross Section of Protons for 2.5-MeV Neutrons

J. C. Davis, K. A. Weaver, D. Hilscher, H. H. Barschall, and A. B. Smith

Phys. Rev. C 4, 1061 – Published 1 October 1971

Abstract

The total cross section of protons for neutrons of mean energy 2535 keV was measured to be 2536 ± 4 mb. This measurement is the average of determinations with five different hydrocarbon samples. Special care was taken to measure neutron energy accurately throughout the experiment and to keep corrections for background and inscattering very small. The singlet effective range deduced from this measurement is 2.78 ± 0.07 fm and is consistent with values deduced from proton-proton scattering under the assumption of charge independence of nuclear forces.

Received 9 July 1971

DOI:https://doi.org/10.1103/PhysRevC.4.1061

Authors & Affiliations

J. C. Davis^*,§, K. A. Weaver^*,†,§, D. Hilscher^‡,§, and H. H. Barschall^*,§

University of Wisconsin, Madison, Wisconsin 53706

A. B. Smith^§

Argonne National Laboratory, Argonne, Illinois 60439

^*Present address: E. O. Lawrence Livermore Laboratory, Livermore, California 94550.
^†National Science Foundation Predoctoral Fellow.
^‡North Atlantic Treaty Organization Fellow, on leave from Hahn-Meitner Institute, Berlin, Germany.
^§Work supported by the U. S. Atomic Energy Commission.

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Vol. 4, Iss. 4 — October 1971

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Physical Review C

covering nuclear physics