Study of the isospin character of 1- states using hadronic probes at intermediate energies.

The complementary (γ, γ') and (α, α'γ) reactions were used to study the isospin properties of low-lying E1 excitations in the doubly-magic nucleus ⁴⁸Ca. In contrast to heavier nuclei, a state-to-state change in isospin character was revealed in ⁴⁸Ca and a dominant isoscalar excitation was found which is interpreted as an isoscalar oscillation. Recently, protons at 80 MeV were used as an additional hadronic probe in a p-γ coincidence experiment on ¹⁴⁰Ce for the first time. Results of the experiments on ⁴⁸Ca and first results of the ¹⁴⁰Ce will be presented in this contribution. [ABSTRACT FROM AUTHOR]