Angular Distribution of 424-Mev Polarized Protons Elastically Scattered from Various Nuclei

Edvard Heiberg
Phys. Rev. 106, 1271 – Published 15 June 1957
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Abstract

Measurements have been made of the polarization and the angular distribution of 424-Mev protons elastically scattered from carbon, aluminum, iron, and silver. The results clearly indicate the importance of separating the elastic scattering from scattering involving excited states of the nucleus. By the inclusion of inelastic scattering, the dips in the cross-section curves and the details in the polarization curves get smeared out. The carbon data show reasonable agreement with similar work by Chesnut. Elastic cross sections were estimated by extrapolating the differential cross-section curves to zero degrees using the optical model of the nucleus.

A nuclear radius was calculated from the location of the first diffraction minima in the cross section curves for the various elements. Upon using the optical model, an average value r0=1.03×1013 cm was obtained. The Born approximation gave r0=1.2×1013 cm.

  • Received 1 March 1957

DOI:https://doi.org/10.1103/PhysRev.106.1271

©1957 American Physical Society

Authors & Affiliations

Edvard Heiberg*

  • The Enrico Fermi Institute for Nuclear Studies, The University of Chicago, Chicago, Illinois

  • *Present address: AB Atomenergi, Stockholm, Sweden.

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Issue

Vol. 106, Iss. 6 — June 1957

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