Abstract
The giant resonances of spin-isospin flip mode are studied by measuring the energy and angular distributions of electroproduced from and nuclei. Several strong groups are found and angular distributions of these groups are analyzed by distorted-wave impulse approximation calculations using the single particle shell model. The experimental cross section of the groups corresponds to an order of the charge exchange single particle transition strength, establishing them as spin-isospin flip giant resonances. The shell model nature of results for shell nuclei are summarized and presented together with previously published data. The obtained results are compared to previously published data for (n,p), and reactions. Strong transitions consistent with the giant resonance excitations from the shell in the core and from the valence shell are observed.
- Received 1 December 1997
DOI:https://doi.org/10.1103/PhysRevC.59.3196
©1999 American Physical Society