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Isovector and Gamow-Teller strength from small-angle (n,p) at 60 MeV

Journal Article · · Phys. Rev. Lett.; (United States)
The (n,p) reactions to the analog giant magnetic dipole states, the inverse of the transitions in allowed Gamow-Teller ..beta..-decay, have been measured for /sup 6/Li, /sup 12/C, and /sup 28/Si for forward angles using 59.6-MeV neutrons. With use of a relation between sigma(0/sup 0/) and the ..beta..-decay matrix elements, v/sup c//sub sigmatau/ (0) = 157 +- 11 MeV fm/sup 3/ is extracted for the l = 0, isovector part of the effective spin-flip nucleon-nucleon interaction. Comparison with 120-MeV (p,n) indicates that v/sup c//sub sigmatau/ has a small energy dependence in the range 60 to 120 MeV.
Research Organization:
Department of Physics and Crocker Nuclear Laboratory, University of California, Davis, California 95616
OSTI ID:
5190740
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 48:13; ISSN PRLTA
Country of Publication:
United States
Language:
English