Long-range interaction at the asymptote 3s+3p of Na 2

Autor: H. Richling, E. Tiemann, H. Knöckel
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