Elastic and inelastic scattering of 24.5 MeV protons by even isotopes of tin, 116, 118, 120Sn and 122, 124Sn, has been studied with an energy resolution better than 20 keV. Approximately 30 levels in each isotope have been resolved up to an excitation energy of 4 MeV. Elastic scattering angular distributions have been analysed to yield optical-model parameters and the inelastic scattering angular distributions have been analysed in the distorted wave Born approximation (DWBA) using collective form factors to determine l and βl corresponding to a large number of the transitions observed. The systematics of the states of each Jπ are discussed and the results are compared to recent theoretical calculations.
- Nuclear reactions
ASJC Scopus subject areas
- Nuclear and High Energy Physics