Ground-state band of the neutron-rich transuranium nucleus Cm
Ishii, Tetsuro ; Shigematsu, Soichiro; Makii, Hiroyuki ; Asai, Masato ; Tsukada, Kazuaki ; Toyoshima, Atsushi; Matsuda, Makoto ; Makishima, Akiyasu*; Shizuma, Toshiyuki; Kaneko, Junichi*; Hossain, I.*; Tome, Hayato*; Ohara, Masako*; Ichikawa, Shinichi; Kono, Toshiyuki*; Ogawa, Masao*
The ground-state band of the neutron-rich transuranium nucleus Cm was established up to spin 12 by in-beam -ray spectroscopy using the two-neutron-transfer reaction with a Cm target and a 162 MeV O beam. Deexcitation rays in Cm were identified by selecting the kinetic energies of O particles with Si - detectors. The moment of inertia of Cm is considerably smaller than that of Cm, which supports the existence of the deformed subshell closure at in Cm isotopes.