title: Resonant Auger decay of molecules in intense x-ray laser fields: light-induced strong nonadiabatic effects.
abstract: The resonant Auger process is studied in intense x-ray laser fields. It is shown that the dressing of the initial and decaying states by the field leads to coupled complex potential surfaces which, even for diatomic molecules, possess intersections at which the nonadiabatic couplings are singular. HCl is studied as an explicit showcase example. The exact results differ qualitatively from those without rotations. A wealth of nonadiabatic phenomena is expected in decay processes in intense x-ray fields.
authors.affiliation: Theoretische Chemie, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany.
authors.forename: Lorenz S
authors.initials: LS
authors.lastname: Cederbaum
authors.forename: Ying-Chih
authors.initials: YC
authors.lastname: Chiang
authors.forename: Philipp V
authors.initials: PV
authors.lastname: Demekhin
authors.forename: Nimrod
authors.initials: N
authors.lastname: Moiseyev