| タイトル | Moments of dipole oscillator-strength distribution for the helium sequence |
| 著者（英） | Wilson, J. W.; Khan, F.; Khandelwal, G. S. |
| 著者所属（英） | NASA Langley Research Center|Old Dominion Univ. |
| 発行日 | 1990-08-28 |
| 言語 | eng |
| 内容記述 | The moments S(mu) for mu at least -6 but no more than 2 and L(mu) for mu = 0, 1, and 2 are calculated for the helium sequence for atomic numbers (Z) up to 30 under a screened hydrogenic model. The model describes the atom by single-particle hydrogenic wave functions and treats the initial and the final state as characterized by two different effective charge parameters Zi and Zf, respectively. The differential oscillator strength of the screened hydrogenic model is asymptotically expanded. Assuming the value of 287.6 for the coefficient of the term epsilon to the -7/2 for helium atoms, the parameter Zf is determined for the helium sequence. |
| NASA分類 | ATOMIC AND MOLECULAR PHYSICS |
| レポートNO | 90A50598 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/353708 |
