Observation of Charge-Asymmetry Effects in the Reaction H2(α, H3)He3 AT 27.4 MeV c.m.

E. E. Gross, E. Newman, W. J. Roberts, R. W. Rutkowski, and A. Zucker
Phys. Rev. Lett. 24, 473 – Published 2 March 1970
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Abstract

The differential cross section for the reaction H2(α, H3)He3 was measured from 31° to 149° c.m. with an 82-MeV α-beam. The measurements were made to test the Barshay-Temmer theorem which requires H3 and He3 yields to be independently symmetric about 90° c.m. We find a pronounced and angle-dependent deviation from 90° symmetry, as large as 10% at some angles. Our results thus constitute the first clear-cut evidence for a violation of the above theorem.

  • Received 29 December 1969

DOI:https://doi.org/10.1103/PhysRevLett.24.473

©1970 American Physical Society

Authors & Affiliations

E. E. Gross and E. Newman

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

W. J. Roberts*, R. W. Rutkowski*, and A. Zucker

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, and Physics Department, University of Tennessee, Knoxville, Tennessee 37916

  • *Oak Ridge Graduate Fellow from the University of Tennessee under appointment from Oak Ridge Associated Universities.

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Vol. 24, Iss. 9 — 2 March 1970

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