Observation of the partial decay intoH0(n’=2) by excitedH−near then=3 and 4 thresholds
| Autor: | Stanley Cohen, E. P. MacKerrow, Warner A. Miller, Karoly Rozsa, J. B. Donahue, Joe J. Tiee, H. C. Bryant, Charles Robert Quick, A. H. Mohagheghi, M. Halka, C. Y. Tang, A. Hsu |
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| Rok vydání: | 1991 |
| Předmět: | |
| Zdroj: | Physical Review A. 44:6127-6129 |
| ISSN: | 1094-1622 1050-2947 |
| DOI: | 10.1103/physreva.44.6127 |
| Popis: | Two resonances in the photodetachment spectrum of ${\mathrm{H}}^{\mathrm{\ensuremath{-}}}$, one just below the n=3 threshold and the other just below the n=4 threshold, were observed decaying into ${\mathrm{H}}^{0}$(n'=2)+e. The n=3 resonance shows a preference for the n'=2 channel when compared with total-detachment measurements. Fano-line-shape fits give central energies of 12.652\ifmmode\pm\else\textpm\fi{}0.003 eV for ${\mathrm{H}}^{\mathrm{\ensuremath{-}}\mathrm{*}\mathrm{*}}$(3) and 13.338\ifmmode\pm\else\textpm\fi{}0.004 eV for ${\mathrm{H}}^{\mathrm{\ensuremath{-}}\mathrm{*}\mathrm{*}}$(4). These values are in good agreement with current theoretical calculations. |
| Databáze: | OpenAIRE |
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