High-Spin States in 93Nb
Abstract
The high-spin states of 93Nb are studied by the 82Se(16O, p4n)93Nb reaction at a beam energy of 100 MeV. The in-beam γ-ray spectroscopic techniques are used. The γt-, γγt-coincidence, γ-ray angular distributions, and linear polarizations are measured. The configurations of the resultant levels are assigned by comparing them with those of the deformed independent particle model (DIPM) calculation. A high-spin isomer with a half life of 1.5(5) μs is found above the 37/2(-) state at 7436 keV. A possible M1 rotational band is found to start from the 37/2(-) state. This band shows the characteristics of an oblate collective rotational band.
- Publication:
-
Journal of the Physical Society of Japan
- Pub Date:
- November 2007
- DOI:
- 10.1143/JPSJ.76.114202
- Bibcode:
- 2007JPSJ...76k4202W