Abstract
Distributions of the (J π=0+, 1+, 2+, 3+, 4+) isoscalar and isovector strength in16O have been calculated in then particle —n hole (n=0, 1, 2) shell model. The isoscalar quadrupole giant resonance comes out fragmentated over eight peaks which exhaust 33% of the EWSR betweenE *=17 and 25 MeV. This result agrees nicely with the recent3He and alpha inelastic scattering experiments. Giant monopole isoscalar (isovector) resonance appears to exhaust more than 50% of the EWSR nearE *=30 MeV (E *=40 MeV). Several collective states of other multipolarities are predicted either near to 30 MeV or between 50 and 60 MeV. The ground state correlations of the 2p2h type give rise to a considerable strength redistributions as compared with the case of the closed shell ground state.
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On leave fromInstitute of Nuclear Physics, Czechosl. Acad. Sci., 250 68 Řež, Czechoslovakia.
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Gmitro, M., Tinková, E., Rimini, A. et al. Positive parity giant multipole resonances in16O. Czech J Phys 29, 155–174 (1979). https://doi.org/10.1007/BF01957544
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DOI: https://doi.org/10.1007/BF01957544