Elsevier

Nuclear Physics A

Volume 257, Issue 2, 2 February 1976, Pages 264-284
Nuclear Physics A

Consistent microscopic and macroscopic analyses of the composite particle optical potential

https://doi.org/10.1016/0375-9474(76)90632-1Get rights and content

Abstract

The optical model potential has been obtained for mass-3 projectiles (3H and 3He) for a range of target nuclei using three different approaches. The potentials along with the cross-section fits are presented. A microscopic calculation of the composite particle optical potential has been performed by folding a realistic nucleon-triton (or helion) interaction into the density distribution of the targets. Optical potentials for 3H and 3He have also been studied starting from nucleon-nucleus optical potentials known a priori. The second-order potentials extracted from these two methods have been compared. The equivalent sharp radii of the real potentials of first set of calculations were consistently lower than the second set. This indicates the need for a saturating term in the nucleon-triton interaction. In the present work, saturation has been introduced through a density-dependent multiplicative factor to the n-t interaction. A phenomenological analysis also has been carried out for t-elastic scattering at 20 MeV off a wide range of targets with the real well depth V0 lying around 125 MeV, which is considered to be the most physical range for V0.

References (25)

  • G. Scheklinski et al.

    Nucl. Phys.

    (1970)
  • M. Bauer et al.

    Phys. Lett.

    (1970)
  • N. Nakanishi et al.

    Nucl. Phys.

    (1970)
  • S. Watanabe

    Nucl. Phys.

    (1958)
    F.G. Perey et al.

    Nucl. Phys.

    (1967)
    S. Mukherjee

    Nucl. Phys.

    (1968)
  • S.K. Samaddar et al.

    Nucl. Phys.

    (1970)
  • G.W. Greenlees et al.

    Phys. Rev.

    (1968)
  • J.S. Lilley

    Phys. Rev.

    (1971)
  • A.Y. Abul-Magd et al.

    Prog. Theor. Phys.

    (1966)
  • P.E. Hodgson, private communication; J.W. Negele, private...
  • P.E. Hodgson

    Adv. in Phys.

    (1968)
  • J.C. Hafele et al.

    Phys. Rev.

    (1967)
  • M. Bauer

    Structure of nuclei

  • Cited by (0)

    View full text