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Giant resonances in /sup 40/Ca

Journal Article · · Phys. Rev. C; (United States)
Inelastic scattering of 98.5, 116.8, and 129.4 MeV ..cap alpha.. particles from /sup 40/Ca has been measured. Analyses were performed on the region between 13.2 to 22.5 MeV excitation energy. From the angular distributions, states at 13.9 and 14.6 MeV have been identified as 0/sup +/ and 2/sup +/, and exhaust 6 and 2.5% of the corresponding energy-weighted sum rule, respectively. Structure at about 15.8 MeV can be tentatively assigned 3/sup -/. The giant quadrupole resonance at E/sub x/ = 17.7 +- 0.2 MeV exhausting 48 +- 8 % of E2 energy-weighted sum rule dominates the spectra in this energy region. The giant monopole resonance is not observed. The angular distribution of the 10.6 MeV state shows 1/sup -/ characteristics and can be explained as an isoscalar dipole state.
Research Organization:
Cyclotron Institute, Texas AandM University, College Station, Texas 77843
OSTI ID:
6247618
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 24:3; ISSN PRVCA
Country of Publication:
United States
Language:
English