| 论文题目: | Fine structure in the a decay of U-219 |
| 作者: | Zhang, M. M.; Tian, Y. L.; Wang, Y. S.; Zhou, X. H.; Zhang, Z. Y.; Yang, H. B.; Huang, M. H.; Ma, L.; Yang, C. L.; Gan, Z. G.; Wang, J. G.; Zhou, H. B.; Huang, S.; He, X. T.; Wang, S. Y.; Xu, W. Z.; Li, H. W.; Xu, X. X.; Duan, L. M.; Ren, Z. Z.; Zhou, S. G.; Xu, H. S. |
| 刊物名称: | PHYSICAL REVIEW C |
| 年: | 2019 |
| 卷: | 100 |
| 期: | 6 |
| 页: | 64317 |
| 摘要: | The heaviest N = 127 even-odd isotone U-219 was produced in a fusion evaporation reaction employing Ar-40 ions bombarding W-183 target. Fusion evaporation residues were separated in flight by the gas-filled recoil separator Spectrometer for Heavy Atoms and Nuclear Structure and subsequently identified using a recoil-alpha correlation method. The alpha-decay properties of U-219 were measured with improved precision, and two new alpha-decay lines were observed and assigned as the decays from the ground state of U-219 to the (5/2(-)) and (3/2(-)) states of Th-215, respectively. The systematics for the alpha decay of the N = 127 even-odd isotones as well as the low-lying nuclear structure of their N = 125 daughter nuclei are discussed. |
