title: Electronic state interferences in resonant x-ray emission after K-shell excitation in HCl.
abstract: 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.
authors.affiliation: Jozef Stefan Institute, Post Office Box 3000, SI-1001 Ljubljana, Slovenia.
authors.forename: M
authors.initials: M
authors.lastname: Kavcic
authors.forename: M
authors.initials: M
authors.lastname: Zitnik
authors.forename: K
authors.initials: K
authors.lastname: Bucar
authors.forename: A
authors.initials: A
authors.lastname: Mihelic
authors.forename: S
authors.initials: S
authors.lastname: Carniato
authors.forename: L
authors.initials: L
authors.lastname: Journel
authors.forename: R
authors.initials: R
authors.lastname: Guillemin
authors.forename: M
authors.initials: M
authors.lastname: Simon