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Abstract
Rotational bands in neutron-rich 98Sr nucleus have been investigated by measuring high-fold prompt λ-ray coincidence events of the spontaneous fission of 252Cf with the Gammasphere detector array. A deformed K=3 band built on the 1838 keV level has been confirmed and extended. Another deformed K=6 band based on the 2535keV level has been established. Both the bands originate most probably from the v 2/9404 v2/3411 two-quasiparticle configuration with Ω=|Ω1-Ω2|and Ω=|Ω1- Ω2|, respectively. Based on the delay-coincidence measurements, the half-lives for the K=3 and K=6 band head levels have been obtained to be 13±3 ns and 4.5± 1.0 ns, respectively.
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LI Ming-Liang, ZHU Sheng-Jiang, J. H. Hamilton, A. V. Ramayya, J. K. Hwang, CHE Xing-Lai, ZHANG Zheng, YUYing-Nan, ZHENG Ran-Cheng, I. Y. Lee, J. O. Rasmussen, Y. X. Luo, W. C. Ma. Two-Quasiparticle Bands and Isomers in 98Sr[J]. Chin. Phys. Lett., 2004, 21(11): 2147-2150.
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LI Ming-Liang, ZHU Sheng-Jiang, J. H. Hamilton, A. V. Ramayya, J. K. Hwang, CHE Xing-Lai, ZHANG Zheng, YUYing-Nan, ZHENG Ran-Cheng, I. Y. Lee, J. O. Rasmussen, Y. X. Luo, W. C. Ma. Two-Quasiparticle Bands and Isomers in 98Sr[J]. Chin. Phys. Lett., 2004, 21(11): 2147-2150.
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LI Ming-Liang, ZHU Sheng-Jiang, J. H. Hamilton, A. V. Ramayya, J. K. Hwang, CHE Xing-Lai, ZHANG Zheng, YUYing-Nan, ZHENG Ran-Cheng, I. Y. Lee, J. O. Rasmussen, Y. X. Luo, W. C. Ma. Two-Quasiparticle Bands and Isomers in 98Sr[J]. Chin. Phys. Lett., 2004, 21(11): 2147-2150.
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LI Ming-Liang, ZHU Sheng-Jiang, J. H. Hamilton, A. V. Ramayya, J. K. Hwang, CHE Xing-Lai, ZHANG Zheng, YUYing-Nan, ZHENG Ran-Cheng, I. Y. Lee, J. O. Rasmussen, Y. X. Luo, W. C. Ma. Two-Quasiparticle Bands and Isomers in 98Sr[J]. Chin. Phys. Lett., 2004, 21(11): 2147-2150.
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