Isoscalar spin excitation in {sup 90}Zr and {sup 208}Pb
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208 (United States)
- CNRS-IN2P3, Institut de Physique Nucleaire, Orsay, BP N 1, F-91406 (France)
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602 (United States)
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854 (United States)
- DAPNIA-SPhN and Laboratoire National Saturne, CEN Saclay, F-91191 Gif-sur-Yvette Cedex (France)
Isoscalar spin-transfer excitations have been measured in {sup 90}Zr and {sup 208}Pb by inelastic scattering of vector and tensor polarized 400 MeV deuterons in an excitation energy range from 2.5 to 43 MeV and 2.3 to 23 MeV, respectively. For {sup 90}Zr, spin excitations were found between 7.5 and 10.7 MeV and in a large structure in the continuum (18 to 28 MeV). For {sup 208}Pb, spin excitations were found at 3.55 and 5.85 MeV, between 6.5 and 11 MeV, and spread over the continuum. Elastic scattering cross sections and vector and tensor analyzing powers were measured between 3.4 and 24{degree} for Zr and Pb, and optical potential parameters were derived. The experimental results are compared to DWIA/RPA calculations. The transition densities used are generated using the continuum random phase approximation. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 292731
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 1 Vol. 59; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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