Hyperfine-dependent lifetimes in Be-like ions
文献类型：期刊论文
| 作者 | Andersson, M.; Zou, Y.; Hutton, R.; Brage, T.2 |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 79页码:15 |
| 关键词 | hyperfine structure isoelectronic series metastable states positive ions radiative lifetimes |
| ISSN号 | 1050-2947 |
| DOI | 10.1103/PhysRevA.79.032501 |
| 英文摘要 | Theoretical investigations of hyperfine quenching of the two metastable levels 1s(2)2s2p (3)P(0) and (3)P(2) have been performed along the Be-like isoelectronic sequence for ions between Z=6-22. It is shown that the lifetime of the latter level is sensitive to hyperfine quenching in the beginning of the isoelectronic sequence, but the sensitivity decreases towards the high-Z end. It is also shown that the hyperfine dependent branching fraction between the 2s(2) (1)S(0)-2s2p (3)P(2) and the 2s2p (3)P(1)-2s2p (3)P(2) transitions can lead to some rather drastic changes in the spectra. Our predicted value of 0.677 s(-1) for the hyperfine-induced 2s(2) (1)S(0)-2s2p (3)P(0) transition rate for (47)Ti(18+) are in disagreement with a recent experimental value of 0.56(3) s(-1). Our calculated values of this quenching are in agreement with other recent calculations all along the sequence. |
| WOS关键词 | EXTENSIVE CASCADE ANALYSES ; ATOMIC LIFETIMES ; LINE INTENSITIES ; FOIL EXPERIMENTS ; STORAGE-RING ; TRANSITION ; SPECTRA ; LEVEL |
| 资助项目 | National Natural Science Foundation of China[10434050] ; China Postdoctoral Science Foundation ; Shanghai Leading Academic Discipline Project[B107] ; Kungliga Fysiografiska Sallskapet i Lund ; Swedish Research Council |
| WOS研究方向 | Optics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000264770200073 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Shanghai Leading Academic Discipline Project ; Kungliga Fysiografiska Sallskapet i Lund ; Swedish Research Council |
| 源URL | [http://119.78.100.186/handle/113462/31216]  |
| 专题 | 中国科学院近代物理研究所 |
| 作者单位 | 1.Fudan Univ, Shanghai EBIT Lab, Inst Modern Phys, Shanghai 200433, Peoples R China 2.Lund Univ, Dept Phys, S-22100 Lund, Sweden |
| 推荐引用方式 GB/T 7714 | Andersson, M.,Zou, Y.,Hutton, R.,et al. Hyperfine-dependent lifetimes in Be-like ions[J]. PHYSICAL REVIEW A,2009,79:15. |
| APA | Andersson, M.,Zou, Y.,Hutton, R.,&Brage, T..(2009).Hyperfine-dependent lifetimes in Be-like ions.PHYSICAL REVIEW A,79,15. |
| MLA | Andersson, M.,et al."Hyperfine-dependent lifetimes in Be-like ions".PHYSICAL REVIEW A 79(2009):15. |
入库方式： OAI收割
来源：近代物理研究所
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