EXPERIMENTAL AND THEORETICAL DETERMINATION OF THE OPTICAL AND GENERALIZED OSCILLATOR-STRENGTHS FOR THE INNER-SHELL EXCITATION OF C2H2

Authors
DEMIRANDA MP BIELSCHOWSKY CE ROBERTY HMB DESOUZA GGB
Citation
Mp. Demiranda et al., EXPERIMENTAL AND THEORETICAL DETERMINATION OF THE OPTICAL AND GENERALIZED OSCILLATOR-STRENGTHS FOR THE INNER-SHELL EXCITATION OF C2H2, Physical review. A, 49(4), 1994, pp. 2399-2404
Citations number
29
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
49
Issue
4
Year of publication
1994
Pages
2399 - 2404
Database
ISI
SICI code
1050-2947(1994)49:4<2399:EATDOT>2.0.ZU;2-7
Abstract
We have determined theoretical values for the excitation energy, optic al oscillator strength, and generalized oscillator strength (GOS), as well as experimental values for the GOS for the C 1s (1sigma(g) --> 1p i(g)) and (1sigma(u) --> 1pi(g)) transitions in the C2H2 molecule. In order to study the influence of relaxation, correlation, and hole-loca lization effects on these properties, several calculations with differ ent target wave functions were computed. The experimental results for the GOS were determined using a crossed-beam electron energy-loss spec trometer.