Symmetry-dependent multielectron excitations near the C 1s ionization threshold and distortion of the shape resonance in CO(2).
Satellite bands accompanying the C 1s photoline for the CO2 molecule parallel to the electric vector of the incident radiation E are found to be more intense than those for CO2 perpendicular to E in the shape resonance region. This indicates that multielectron excitations are caused in part by the interaction of the outgoing C 1s photoelectron with the valence electrons. The photoelectron-impact valence excitations couple with the C 1s single-hole ionization and distort the shape resonance significantly. We assign the broad resonance at approximately 312 eV to a distorted Sigma(u) shape resonance.
De Fanis
A
A
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.
Saito
N
N
Pavlychev
A A
AA
Ladonin
D Yu
DY
Machida
M
M
Kubozuka
K
K
Koyano
I
I
Okada
K
K
Ikejiri
K
K
Cassimi
A
A
Czasch
A
A
Dörner
R
R
Chiba
H
H
Sato
Y
Y
Ueda
K
K