https://doi.org/10.1140/epja/i2006-10213-7
Regular Article - Nuclear Structure and Reactions
Observation of M3 isomeric transition from 156mPm through the βdecay of 156Nd
1
Radioisotope Research Center, Nagoya University, 464-8602, Nagoya, Japan
2
Graduate School of Engineering, Nagoya University, 464-8603, Nagoya, Japan
3
Graduate School of Engineering, Hiroshima University, 739-8527, Higashi-Hiroshima, Japan
4
Research Reactor Institute, Kyoto University, 590-0494, Kumatori, Japan
* e-mail: i45329a@nucc.cc.nagoya-u.ac.jp
Received:
6
November
2006
Accepted:
25
January
2007
Published online:
12
February
2007
An M3 transition in a doubly odd nucleus of 156Pm was identified by internal conversion electron measurement through the β-decay of 156Nd which was separated from the fission products of 235U using the on-line mass separator KUR-ISOL. The isomeric state at 150.3keV de-excites to the ground state with the M3 transition, and the spin-parity is considered to be 1-. Nilsson configurations are also discussed on the basis of the systematics.
PACS: 23.20.Nx Internal conversion and extranuclear effects – / 27.70.+q 150≤A≤189 –
© Società Italiana di Fisica and Springer-Verlag, 2007
