Gamma08

Session

Isomeric states

ISM

4 Apr 2008, 10:50

Nishina Hall (RIKEN Nishina Center)

21. Isomeric decay spectroscopy at RISING

Zsolt Podolyak (University of Surrey)

04/04/2008, 10:50

Single particle motion in isomeric states

Invited Presentation

Decay spectroscopy following projectile fragmentation constitutes one of the most sensitive methods of studying exotic nuclei. It enables nuclear structure investigations for species produced with very low yields (few nuclei an hour). Exotic nuclei were synthesised using relativistic projectile fragmentation. The fragments were separated and unambiguously identified event-by-event using the...

40. Gamma-ray spectroscopy at Osaka

Atsuko Odahara (Department of Physics, Osaka University)

04/04/2008, 11:20

Single particle motion in isomeric states

Presentation

We are performing the experimental studies on high-spin isomers [1]. These isomers have been reported in $N$=83 isotones with $Z$=60$-$67. The spins of these isomers are 49/2${}^{+}$ and 27${}^{+}$ for odd and odd-odd nuclei, respectively. Their shapes were known to be oblate with a deformation parameter $\beta$$\sim$$-$0.2. These isomerism were understood to be caused by the sudden shape...

61. High-spin isomers in nuclei around the N=82 shell sclosure

Prof. Costel Petrache (Institute de Physique Nucleaire, CNRS-IN2P3 and University Paris Sud)

04/04/2008, 11:40

Presentation

The recent observation of high-spin isomers in Neodymium nuclei around the N=82 shell closure triggered new experimental investigations aiming to the identification of other similar isomers in the neighboring nuclei. The results of lifetime measurements for the 6-qp 20+ isomer in 140-Nd and for the 3-qp isomer above the 19/2+ state in 139-Nd represent a strong support to the cranked...