Elsevier

Nuclear Physics

Volume 12, Issue 6, 1 September 1959, Pages 596-605
Nuclear Physics

Inelastic scattering of high energy protons by helium: An excited level?

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Abstract

No clear evidence for the existence of an excited level has been found in an investigation of the energy spectra and polarizations of 185 MeV protons inelastically scattered by He4 in the angular region 6.5°–43.5°lab. An upper limit of 0.02 mb · sr−1c.m. has been obtained for the excitation of an excited level in the region 4–17 MeV excitation energy in 33.5°lab scattering of these protons. A peak in the energy spectra is seen at all angles at 22.5±0.4 MeV excitation energy, which is quite well fitted with a simple model of quasi-free nucleon-nucleon scattering with a final state interaction for which the parameter values required, however, seem anomalous.

References (19)

  • H. Tyrén et al.

    Arkiv för Fysik

    (1957)
  • R. Wilson
  • P.A. Wolff

    Phys. Rev.

    (1952)
  • Bergman et al.

    Soviet Physics JETP

    (1958)
    Vlasov et al.

    Soviet Physics JETP

    (1955)
  • J. Benveniste et al.

    Phys. Rev.

    (1953)
  • A.F. Wickersham

    UCRL-2662

    (1954)
  • R.M. Eisberg

    Phys. Rev.

    (1956)
  • Tyrén et al.

    Nuclear Physics

    (1957)
  • Hillman et al.

    Nuclear Physics

    (1957)
There are more references available in the full text version of this article.

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CERN (European Organization for Nuclear Research, Theoretical Study Division). Now at SC Division, CERN, Geneva.

††

Now at SC Division, CERN, Geneva.

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