Published September 1992 | Version v1
Journal article

Isoscalar spin excitation in 40Ca

  • 1. Dapnia-SPN, Centre d'Etudes Nucleaires Saclay, 91191 Gif-sur-Yvette CEDEX (France)
  • 2. University of Georgia, Athens, Georgia 30602 (United States)
  • 3. Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208 (United States)
  • 4. Rutgers University, New Brunswick, New Jersey 08903 (United States)
  • 5. Laboratoire National Saturne, Centre d'Etudes Nucleaires Saclay, 91191 Gif-sur-Yvette CEDEX (France)
  • 6. Institut de Physique Nucleaire, Orsay, Boite Postale No. 1, 91406, Orsay (France)

Description

A signature Sdy of isoscalar spin-transfer strength has been tested in the inelastic scattering of 400 MeV dueterons from 12C. It was then applied to the study of 40Ca over an angular range from 3 degree to 7 degree (momentum transfer range from 0.26 to 0.8 fm-1) and an excitation energy range from 6.25 to 42 MeV. This is the first study of isoscalar spin strength in the continuum. Spin excitations were found in the 9 MeV region, and over a broad range in the continuum with a cluster strength around 15 MeV. The results are compared with spin-flip probability measurements in proton scattering. In contrast to the total relative spin response, which is strongly enhanced at high excitation, the isoscalar relative spin response is roughly consistent with noninteracting Fermi gas values

Additional details

Publishing Information

Journal Title
Physical Review. C, Nuclear Physics
Journal Volume
46
Journal Issue
3
Journal Page Range
p. 1008-1018.
ISSN
0556-2813
CODEN
PRVCAN