Repulsive KAr potentials from differential optical collisions

Autor: Cristina Figl, J. Grosser, Frank Rebentrost, O. Hoffmann
Rok vydání: 2004
Předmět:
Zdroj: Journal of Physics B: Atomic, Molecular and Optical Physics. 37:3369-3377
ISSN: 1361-6455
0953-4075
DOI: 10.1088/0953-4075/37/16/012
Popis: Experimental differential cross sections for the optical collision process K(4s)2S + Ar + hν → K(4p)2P + Ar are reported. The characteristic interference structures are used to determine the repulsive parts of the KAr X2Σ and B2Σ potential curves by comparison with the results of exact quantum coupled-channel scattering calculations. By a least-squares procedure we obtain potentials with a relative accuracy of typically 1% in the range 0 ≤ V ≤ 1000–1500 cm−1, corresponding to absolute values of 2–4 cm−1 for the larger and 10–15 cm−1 for the smaller distances sampled by the experiment.
Databáze: OpenAIRE