Structure of (46)Ti at low excitation energy

The nucleus 46Ti has been studied with the reaction 42Ca(7Li,p2n)46Ti at a bombarding energy of 31 MeV. Thin target foils backed with a thick Au layer were used. Five new levels of negative parity were observed. Several lifetimes have been determined with the Doppler shift attenuation method. Low-lying experimental negative-parity levels are assigned to three bands with Kπ=3−, 0−, and 4−, which are interpreted in terms of the large-scale shell model, considering particle-hole excitations from d3/2 and s1/2 orbitals. Shell model calculations were performed using a few effective interactions. However, good agreement was not achieved in the description of either negative- or positive-parity low-lying levels.