The photonuclear cross section for the isovector electric dipole in 18O is calculated using the open-shell linear response method. The model accounts for the pygmy resonance and provides a simple interpretation for the main peak at 23.7 MeV observed in photoabsorption cross sections. The model reproduces qualitatively the main differences and common features of the 16O and 18O photoabsorption cross sections. The strength distributions of the isoscalar quadrupole and octupole states in 18O are also presented.
|Number of pages||10|
|Journal||Nuclear Physics A|
|State||Published - 12 Jan 1981|
ASJC Scopus subject areas
- Nuclear and High Energy Physics