BREAKDOWN OF THE INDEPENDENT-PARTICLE APPROXIMATION IN HIGH-ENERGY PHOTOIONIZATION

Authors
DIAS EWB CHAKRABORTY HS DESHMUKH PC MANSON ST HEMMERS O GLANS P HANSEN DL WANG H WHITFIELD SB LINDLE DW WEHLITZ R LEVIN JC SELLIN IA PERERA RCC
Citation
Ewb. Dias et al., BREAKDOWN OF THE INDEPENDENT-PARTICLE APPROXIMATION IN HIGH-ENERGY PHOTOIONIZATION, Physical review letters, 78(24), 1997, pp. 4553-4556
Citations number
21
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
24
Year of publication
1997
Pages
4553 - 4556
Database
ISI
SICI code
0031-9007(1997)78:24<4553:BOTIAI>2.0.ZU;2-R
Abstract
The independent particle approximation is shown to break down for the photoionization of both inner and outer nl (l > 0) electrons of all at oms, at high enough energy, owing to interchannel interactions with th e nearby ns photoionization channels. The effect is illustrated for Ne 2p in the 1 keV photon energy range through a comparison of theory an d experiment. The implications for x-ray photoelectron spectroscopy of molecules and condensed matter are discussed.