PT Journal
AU Jungclaus, Aea
   Gadea, A
   Montaner-Piza, A
TI Observation of a gamma-decaying millisecond isomeric state in Cd-128(80)
SO Physics Letters B
JI Phys. Lett. B
PY 2017
BP 483
EP 488
VL 772
DI 10.1016/j.physletb.2017.07.006
LA English
DE Isomeric decays; Shell model calculations; Transition strengths
AB A new high-spin isomer in the neutron-rich nucleus Cd-128 was populated in the projectile fission of a U-238 beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T-1/2 = 6.3(8) mswas measured for the new state which was tentatively assigned a spin/parity of (15(-)). The experimental results are compared to shell model calculations performed using state-of-the-art realistic effective interactions and to the neighbouring nucleus Cd-129. In the present experiment no evidence was found for the decay of a 18(+) E6 spin-trap isomer, based on the complete alignment of the two-neutron and two-proton holes in the 0h(11/2) and the 0g(9/2) orbit, respectively, which is predicted to exist by the shell model. (C) 2017 The Author(s). Published by Elsevier B.V.
ER