Abstract
We have measured de-excitation gamma rays in Cm-249 populated by one-neutron stripping reactions with a Cm-248 target and 162-MeV O-16, 162-MeV O-18, and 120-MeV C-13 beams. gamma rays in Cm-249 were identified by measuring kinetic energies of outgoing particles using Si Delta E-E detectors. It was demonstrated that high-j orbitals were selectively populated in the (O-16, O-15) reaction having a large negative Q value. We have observed eight quasiparticle states above the deformed shell gap of N=152. The 1/2(+)[620], 1/2(-)[750], and 7/2(+)[613] bands were extended up to 19/2(+), 19/2(-), and 13/2(+) states, respectively. We have established the 9/2 9/2(+)[615] state at 526 keV, the 9/2 9/2(+)[604] state with a short life of T-1/2 < 2 ps at 1030 keV, and the 11/2 11/2(-)[725] state with T-1/2=19(1) ns at 375 keV. Furthermore, the 17/2 1/2(+)[880] state, having a large component of the k(17/2) spherical single-particle state, has been identified at 1505 keV. We discuss the properties of those quasiparticle states in the framework of a deformed shell model.