The character of excited states in 41Sc studied by elastic and inelastic proton scattering from 40Ca

Abstract Excitation functions of elastic and inelastic proton scattering leading to the ground state and to the 0 + (3.35 MeV), 3 − (3.74 MeV) and 2 + (3.91 MeV) excited states of 40 Ca were measured at 90°, 125° and 160° at bombarding energies from 4.8 to 6.2 MeV. Sixty resonances were identified. Angular distributions of the inelastically scattered protons were measured at bombarding energies corresponding to most of the resonances observed in the excitation curves. The spins of the corresponding levels in 41 Sc and their partial widths for decay to the ground state and to the three excited states in 40 Ca were determined in most of the cases. In a few cases de-excitation to the 5 − state at 4.49 MeV excitation in 40 Ca was also observed. Levels in 41 Sc having configurations with large two-particle one-hole component were identified and compared with similar levels in 41 Ca and with theoretical predictions.