Observation of an electric quadrupole transition in a negative ion: Experiment and Theory
| Autor: | Walter, C. W., Spielman, S. E., Ponce, R., Gibson, N. D., Yukich, J. N., Cheung, C., Safronova, M. S. |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 126, 083001 (2021) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.126.083001 |
| Popis: | The first direct experimental observation of an electric quadrupole ($\textit{E}$2) transition between bound states of an atomic negative ion has been made. The transition was observed in the negative ion of bismuth by resonant (1+1) photodetachment from Bi$^-$ $^3\textit{P}_2$ via excitation of the Bi$^-$ $^3\textit{P}_0$ fine structure state. The $\textit{E}$2 transition properties were independently calculated using a hybrid theoretical approach to account for the strong multi-level electron interactions and relativistic effects. The experimental and theoretical results are in excellent agreement, providing valuable new insights into this complex system and forbidden transitions in negative ions. Comment: 7 pages, 3 figures, 4 tables |
| Databáze: | arXiv |
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