Long-range interaction at the asymptote 3s+3p of Na 2
Autor: | H. Richling, E. Tiemann, H. Knöckel |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Zeitschrift f�r Physik D Atoms, Molecules and Clusters. 37:323-332 |
ISSN: | 1431-5866 0178-7683 |
DOI: | 10.1007/s004600050047 |
Popis: | Vibrational levels a few μeV below the dissociation asymptote 3s + 3p of Na2 were studied in a molecular beam. The hyperfine structure could be resolved. The molecular levels can be described by adiabatic potentials calculated with the help of atomic parameters: spin-orbit parameter, hyperfine parameter and lifetime of the 3p level. This gives a very precise picture of long oange interactions up to internuclear distances R ≈ 250 A. Retardation effects were not identified within the error limits of the data in agreement with theoretical estimates. The life-time derived for the 3p level of the sodium atom agrees very well with independent measurements from different methods. |
Databáze: | OpenAIRE |
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