ABSOLUTE PHOTOIONIZATION CROSS-SECTIONS OF THE BA GROUND-STATE IN THEAUTOIONIZATION REGION .1. 238-218 NM

Authors
MAEDA K AYMAR M UEDA K CHIBA H OHMORI K SATO Y WEST JB ROSS KJ ITO K
Citation
K. Maeda et al., ABSOLUTE PHOTOIONIZATION CROSS-SECTIONS OF THE BA GROUND-STATE IN THEAUTOIONIZATION REGION .1. 238-218 NM, Journal of physics. B, Atomic molecular and optical physics, 30(14), 1997, pp. 3159-3171
Citations number
20
Categorie Soggetti
Physics, Atomic, Molecular & Chemical",Optics
Journal title
Journal of physics. B, Atomic molecular and optical physics → ACNP
ISSN journal
09534075
Volume
30
Issue
14
Year of publication
1997
Pages
3159 - 3171
Database
ISI
SICI code
0953-4075(1997)30:14<3159:APCOTB>2.0.ZU;2-9
Abstract
Absolute photoionization cross sections for Ba, measured using a Mach- Zender interferometer, are presented. The present value of the cross s ection at the ionization threshold, 48.8 +/- 6.7 Mb, is in good agreem ent with previous values. R-matrix calculations combined with MQDT tec hniques have been carried out to analyse the spectra obtained. The lin eshape parameters obtained from the experimental data on the resonance lines are used to establish the identity of perturbing structure: the perturber is identified as the 6p7s P-3(1) level via the present theo retical calculations.