Akademik Veri Yönetim Sistemi
Physical Review C - Nuclear Physics, cilt.82, sa.6, 2010 (SCI-Expanded)
A second γ-decaying high-spin isomeric state, with a half-life of 197(22)ns, has been identified in the N=Z+2 nuclide Pd94 as part of a stopped-beam Rare Isotope Spectroscopic INvestigation at GSI (RISING) experiment. Weisskopf estimates were used to establish a tentative spin/parity of 19-, corresponding to the maximum possible spin of a negative parity state in the restricted (p1/2, g9/2) model space of empirical shell model calculations. The reproduction of the E3 decay properties of the isomer required an extension of the model space to include the f5/2 and p3/2 orbitals using the CD-Bonn potential. This is the first time that such an extension has been required for a high-spin isomer in the vicinity of Sn100 and reveals the importance of such orbits for understanding the decay properties of high-spin isomers in this region. However, despite the need for the extended model space for the E3 decay, the dominant configuration for the 19- state remains (πp1/2-1g9/2-3)11-(νg9/2-2)8. The half-life of the known, 14⊃+, isomer was remeasured and yielded a value of 499(13) ns. © 2010 The American Physical Society. © 2010 The American Physical Society.