https://doi.org/10.1140/epjd/e2006-00153-8
Lineshapes of the even mp1/25n(p′/f′) autoionizing resonances of Ar, Kr and Xe
1
Rostov State University of TC, 344038 Rostov-on-Don, Russia
2
Technische Universität Kaiserslautern, 67653 Kaiserslautern, Germany
3
LURE, Centre Universitaire Paris-Sud, Bâtiment 209D, 91898 Orsay Cedex, France
4
LIXAM, Centre Universitaire Paris-Sud, Bâtiment 350, 91405 Orsay Cedex, France
Corresponding author: a vls@physik.uni-kl.de
Received:
29
March
2006
Revised:
25
May
2006
Published online:
30
June
2006
The even parity mp1/25np′ and mp1/25nf′ autoionizing resonances of Ar, Kr, and Xe (m=3,4,5) were investigated experimentally and theoretically by one-photon excitation from lower-lying intermediate levels. In particular, high resolution measurements for the Ar(nf′), Kr(12p′,8f′), and Xe(8p′) resonances are reported; lineshape parameters for these resonances have been derived by a Fano-type analysis, thus yielding reduced resonance widths. The experimental spectra and the resonance parameters are compared with theoretical calculations which are based on the configuration interaction Pauli–Fock approach including core polarization. The measured and calculated lineshapes are in good agreement. In addition, theoretical predictions are presented for other resonances, which have not yet been observed experimentally, and some systematic trends are elucidated.
PACS: 32.80.Fb – Photoionization of atoms and ions / 32.80.Dz – Autoionization / 31.25.-v – Electron correlation calculations for atoms and molecules
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2006