Electronic state interferences in resonant x-ray emission after K-shell excitation in HCl.
We have measured a series of high-resolution x-ray spectra emitted upon resonant photoexcitation of HCl. The photon energy was tuned across the dissociative 1s→6σ* resonance and the Rydberg states converging to the Cl 1s(-1) threshold, and inelastic photon scattering was observed in the region of KL emission lines. Excellent agreement is found between fully ab initio calculated and measured spectra if interferences between different excitation-emission paths are taken into account. The effect of electronic state interferences is enhanced due to dynamical broadening of the 6σ* resonance in HCl.
Kavcic
M
M
Jozef Stefan Institute, Post Office Box 3000, SI-1001 Ljubljana, Slovenia.
Zitnik
M
M
Bucar
K
K
Mihelic
A
A
Carniato
S
S
Journel
L
L
Guillemin
R
R
Simon
M
M