PROBLEMS WITH THE STANDARD SEMICLASSICAL IMPACT LINE-BROADENING THEORY

Authors
ALEXIOU S
Citation
S. Alexiou, PROBLEMS WITH THE STANDARD SEMICLASSICAL IMPACT LINE-BROADENING THEORY, Physical review letters, 75(19), 1995, pp. 3406-3409
Citations number
26
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
75
Issue
19
Year of publication
1995
Pages
3406 - 3409
Database
ISI
SICI code
0031-9007(1995)75:19<3406:PWTSSI>2.0.ZU;2-Q
Abstract
In this work we study in detail the Ne vII 2s3p-2s3s singlet line, whi ch was also the object of a recent experiment. The standard perturbati ve impact theory predictions are tested against a fully nonperturbativ e semiclassical impact calculation, taking into account dipole and qua drupole interactions. Potentially very significant problems with the s tandard perturbative theory are encountered and discussed, and a simpl e remedy is proposed.