Elsevier

Nuclear Physics

Volume 38, October–November 1962, Pages 489-503
Nuclear Physics

Angular correlations for the C13(He3, αγ)C12 reaction

https://doi.org/10.1016/0029-5582(62)91060-XGet rights and content

Abstract

The angular correlations between the first-excited-state alpha particles from the C13 (He3, α) C12 reaction and the subsequent 4.43 MeV gamma rays have been studied as functions of the angle of emission of the gamma rays for alpha particles emitted at laboratory angles of 10°, 25°, 40°, 90° and 128° at a bombarding energy of 4.50 MeV. The correlation functions have been fitted with an expression of the form W(θγ) = 1 + b2 cos 2(θγθ2) + b4 cos 4(θγθ4).

The cos 4θ term dominates the correlation function at low angles and the θ4 phase angle remains constant, while the θ2 phase angle behaves similar to the recoil axis at low angles. The behaviour of the cos 4θ term is inconsistent with a pickup model for the reaction. Other possible direct-exchange interaction models are discussed.

References (23)

  • G. R. Satchler, private...
  • H.D Holmgren et al.

    Phys. Rev.

    (1959)
  • H.D Holmgren

    Phys. Rev.

    (1957)
  • H.D Holmgren et al.

    Phys. Rev.

    (1957)
  • E.A Wolicki et al.

    Phys. Rev.

    (1959)
  • R.L Johnston et al.

    Phys. Rev.

    (1958)
  • G. D. Gutsche, H. D. Holmgren, L. M. Cameron and R. L. Johnston, to be...
  • E.G Illsley et al.

    Phys. Rev.

    (1957)
  • R Sherr et al.

    Bull. Am. Phys. Soc.

    (1956)
  • W. Hornyak, private...
  • J.P Schiffer et al.

    Phys. Rev.

    (1956)
  • Cited by (2)

    • Energy levels of light nuclei A = 11-12

      1980, Nuclear Physics, Section A

    Now at Department of Physics, University of Maryland, College Park, Maryland.

    View full text