Coulomb excitation of 226Ra

Radioactive targets of 226Ra were Coulomb excited by 4He projectiles (particle spectroscopy), and 16O, 32S and 208Pb projectiles (particle-γ coincidences). The K = 0± rotational bands could be followed up to spin 18+ and 17-, respectively. All experiments were simultaneously analyzed in terms of E1, E2, E3 and E4 matrix elements coupling the positive and negative parity rotational states. The systematics of level energies, as well as dipole, quadrupole and octupole matrix elements are discussed in the framework of models assuming stable octupole deformation. (orig.)