Elsevier

Nuclear Physics A

Volume 406, Issue 1, 12 September 1983, Pages 18-28
Nuclear Physics A

An interference effect in the channel radiative neutron capture process

https://doi.org/10.1016/0375-9474(83)90282-8Get rights and content

Abstract

This study shows that the small thermal neutron radiative capture cross sections in 12C and neighbouring nuclides are the result of destructive interference between the potential scattering wave and the resonance scattering wave near the nuclear surface, resulting in a drastic cancellation in the radial integral. The behaviour of the scattering wave function is examined, and the general condition for the occurrence of such cancellation is discussed. The expression for the channel radiative capture cross section which has been derived has the same structure as the Lane-Lynn formula but is expressed in terms of different parameters. In addition, this investigation shows that if the optical model well depth is adjusted so that the binding energy of the p12 orbit in 12C is kept at the experimental value, then the calculated results for the potential and channel radiative neutron capture cross sections are insensitive to the value of the nuclear radius.

References (8)

  • A.M. Lane et al.

    Nucl. Phys.

    (1960)
  • Y.K. Ho et al.

    Nucl. Phys.

    (1983)
  • F. Ajzenberg-Selove

    Nucl. Phys.

    (1976)
  • S.F. Mughabghab

    Phys. Lett.

    (1979)
There are more references available in the full text version of this article.

Cited by (11)

View all citing articles on Scopus

Permanent Address: Zhengzhou University, Honan Province, People's Republic of China.

View full text