Lifetime Measurements of Low-Spin Negative-Parity Levels in 160 Gd

Gd-160(n,n'gamma) experiments were performed with accelerator-producedmonoenergetic neutrons. Excitation functions at neutron energies from 1.5 to 2.8 MeV aided in the placement of. rays in the level scheme and angular distributions at three neutron energies resulted in the determination of 28 excited-level lifetimes or limits in 160Gd, including the lifetimes of several negative-parity levels attributed to octupole vibrations.