抄録
High-spin states of 145Sm were studied by using the reactions 20Ne(136Xe,α7n), 16O(136Xe,7n), 139La(10B,4n) and 138Ba(13C,6n). The level scheme was extended up to the state at 14.6 MeV. The excitation energy and the spin-parity of the 0.96 μs high-spin isomer were determined to be 8.8 MeV and (49/2+), respectively. Experimental results were discussed comparing with the deformed independent particle model calculation. High-spin isomers observed in N = 83 isotones were interpreted to be caused by the sudden shape change from near spherical to oblate. The Z = 64 shell gap energy was found to decrease from 2.4 to 2.0 MeV as the proton number decreases from Z = 64 to 61.
本文言語 | 英語 |
---|---|
ページ(範囲) | 363-384 |
ページ数 | 22 |
ジャーナル | Nuclear Physics A |
巻 | 620 |
号 | 3 |
DOI | |
出版ステータス | 出版済み - 7月 14 1997 |
外部発表 | はい |
All Science Journal Classification (ASJC) codes
- 核物理学および高エネルギー物理学