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D-state effects and J-dependence in (. cap alpha. ,d) reactions

Journal Article · · Phys. Rev. Lett.; (United States)
It is shown that inclusion of the D state of the alpha particle in the distorted-wave amplitude for (..cap alpha..,d) reactions causes a strong J dependence. The S-D--state interference is destructive for transitions with natural-parity J transfers and constructive for unnatural-parity J values, thus causing, for example, an odd-even staggering in the variation with J of the cross sections for exciting the states of a given multiplet. This provides a possible explanation for recent observations on the reaction /sup 208/Pb(..cap alpha..,d) /sup 210/Bi. A similar J dependence is predicted for (/sup 6/Li, ..cap alpha..) reactions.
Research Organization:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
5981913
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 49:26; ISSN PRLTA
Country of Publication:
United States
Language:
English