Comparison of the Reaction He4(p, 2p)H3 at Intermediate Energies with the Distorted-Wave Impulse Approximation

M. B. Epstein, D. J. Margaziotis, J. Simone, D. K. Hasell, B. K. S. Koene, B. T. Murdoch, W. T. H. van Oers, J. M. Cameron, L. G. Greeniaus, G. A. Moss, J. G. Rogers, and A. W. Stetz
Phys. Rev. Lett. 44, 20 – Published 7 January 1980
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Abstract

The He4(p, 2p)H3 reaction has been measured at 250, 350, and 500 MeV using symmetric geometries. The energy dependence of the cross section at zero recoil momentum and angular distributions are presented. The data are compared to distorted-wave impulse-approximation (DWIA) calculations. Unlike at lower energies, the zero-recoilmomentum data are well described by the DWIA at these energies. For the angular distributions, the DWIA increasingly underestimates the data as the recoil momentum is increased.

  • Received 16 October 1979

DOI:https://doi.org/10.1103/PhysRevLett.44.20

©1980 American Physical Society

Authors & Affiliations

M. B. Epstein, D. J. Margaziotis, and J. Simone

  • California State University, Los Angeles, California 90032

D. K. Hasell, B. K. S. Koene, B. T. Murdoch, and W. T. H. van Oers

  • University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada

J. M. Cameron, L. G. Greeniaus, and G. A. Moss

  • University of Alberta, Edmonton, Alberta T6G 2J1, Canada

J. G. Rogers

  • TRIUMF, Vancouver, British Columbia V6T 1W5, Canada

A. W. Stetz

  • Oregon State University, Corvallis, Oregon 97331

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Vol. 44, Iss. 1 — 7 January 1980

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