Proton decay from the isoscalar giant dipole resonance in {sup 58}Ni
Journal Article
·
· Physical Review. C, Nuclear Physics
- University of Notre Dame, Notre Dame, Indiana 46556 (United States)
- Research Center for Nuclear Physics, Osaka University, Mihogaoka 10-1, Ibaraki, 567-0047 Osaka (Japan)
- Department of Physics, Konan University, Kobe 658-8501 (Japan)
- Institute of Nuclear Research of the Hungarian Academy of Sciences, H-4001 Debrecen (Hungary)
- Kernfysisch Versneller Instituut, University of Groningen, 9747 AA Groningen (Netherlands)
- Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)
Proton decay from the 3({Dirac_h}/2{pi}){omega} isoscalar giant dipole resonance (ISGDR) in {sup 58}Ni has been measured using the ({alpha},{alpha}{sup '}p) reaction at a bombarding energy of 386 MeV to investigate its decay properties. We have extracted the ISGDR strength under the coincidence condition between inelastically scattered {alpha} particles at forward angles and decay protons emitted at backward angles. Branching ratios for proton decay to low-lying states of {sup 57}Co have been determined, and the results compared with predictions of recent continuum-RPA calculations. The final-state spectra of protons decaying to the low-lying states in {sup 57}Co were analyzed for a more detailed understanding of the structure of the ISGDR. It is found that there are differences in the structure of the ISGDR as a function of excitation energy.
- OSTI ID:
- 21293930
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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