Study of Nuclear States inCa40by Inelastic Electron Scattering
- 1 December 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 2 (6), 2181-2199
- https://doi.org/10.1103/physrevc.2.2181
Abstract
High-resolution measurements of the differential cross sections for inelastic electron scattering of 183- and 250-MeV electrons by were carried out using beams from the Tohoku 300-MeV electron linear accelerator. Peaks were found with the following excitation energies (in MeV), and spins and parities: 3.74(), 3.90(), 4.49(), 5.25(), 5.61(), 5.90(), 6.29(), 6.59(), 6.95(), 7.9(, ), 8.5(, , ), and others in the giant-resonance region. The cross sections for these states were obtained in the momentum transfer range from 0.5 to 2.2 . The data of the and states were compared not only with Tassie's vibrational model, but also with the particle-hole model of Gillet et al. The excitations of the dipole states () are compared with Fujii's calculation. The data have been analyzed by using a distorted-wave code of Tuan, Wright, and Onley to extract the values of the reduced transition probabilities using the transition charge desities modified from the Tassie model, and from the particle-hole model. Then, the values of obtained from the quite different models are compared. The shapes of which provide best fits to the data are presented.
Keywords
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