The 46, 48, 50Ti(p, α) 43, 45, 47Sc reactions at 40.35 MeV

Abstract

The 46, 48, 50Ti(p, α) 43, 45, 47Sc reactions have been studied at a proton energy of 40.35 MeV with an overall energy resolution of about 80 keV FWHM. Angular distributions for states with excitation energies up to about 7 MeV in 43Sc and 45Sc and up to 8.4 MeV in 47Sc are presented. Both positive- and negative-parity states were observed. A microscopic form factor formalism for the three-nucleon transfer reaction was applied to extract quantitative information. Zeroth order calculations have been performed assuming the simplest possible configuration for the transferred nucleons. Subsequently, the ( 1 f 7 2 ) n shell-model wave functions of Kutschera et al. have been used in a more detailed test, considering the components with different neutron angular momentum couplings. Reasonable agreement was obtained for most of the states considered. The effect on the calculated analyzing power of including different configurations for the 7 2 − g.s. transition in 47Sc was found to be small.