Positronium: Precision determination of the ground-state fine-structure interval Δv, and measurement of density shifts in the noble gases
Autor: | M.H. Yam, P.O. Egan, V. W. Hughes, W.E. Frieze |
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Rok vydání: | 1975 |
Předmět: | |
Zdroj: | Physics Letters A. 54:412-414 |
ISSN: | 0375-9601 |
DOI: | 10.1016/0375-9601(75)90792-6 |
Popis: | The positronium n = 1 fine-structure interval, Δ v , has been measured in nitrogen yielding Δv = 203.3849(12) GHz. Comparison with theory shows the need to calculate higher-order theoretical terms. The positronium density shifts in the noble gases were also measured. |
Databáze: | OpenAIRE |
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