Elsevier

Nuclear Physics A

Volume 290, Issue 2, 31 October 1977, Pages 285-293
Nuclear Physics A

Elastic proton scattering from 4He in the forward direction at 200, 350 and 500 MeV

https://doi.org/10.1016/0375-9474(77)90437-7Get rights and content

Abstract

The differential cross section for the elastic scattering of protons from 4He has been measured at 200, 350, and 500 MeV over an angular range from 3.5° to 15° in the lab system. In addition, the analyzing power was measured in the same angular range at 350 and 500 MeV. The experiment makes use of a tenuous gas target in which the recoil α-energy is measured with solid-state detectors. The proton scattering angle is measured outside the target by a system of multi-wire proportional counters. The differential cross sections have a nearly exponential dependence on momentum transfer in this kinematic range and grow with increasing energy. The analyzing power shows strong positive asymmetry.

References (22)

  • S.L. Verbeck et al.

    Phys. Lett.

    (1975)
  • J. Fain et al.

    Nucl. Phys.

    (1976)
  • W. Czyz et al.

    Phys. Lett.

    (1967)
  • M. Brossard et al.

    Nucl. Instr.

    (1972)
  • R.J. Barrett et al.

    Nucl. Instr.

    (1975)
  • E.T. Boschitz et al.

    Phys. Rev.

    (1972)
  • H. Palevsky et al.

    Phys. Rev. Lett.

    (1967)
  • S.D. Baker et al.

    Phys. Rev. Lett.

    (1974)
  • A.M. Cormack et al.

    Phys. Rev.

    (1959)
  • V. Comparat et al.

    Phys. Rev.

    (1975)
  • N.P. Goldstein et al.

    Can. J. Phys.

    (1969)
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    Work supported in part by the National Science Foundation and by the National Research Council of Canada.

    ††

    Present address: Los Alamos Scientific Laboratory, Los Alamos, New Mexico.

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