title: Fluorescence emission of excited hydrogen atoms after core excitation of water vapor.
abstract: The Balmer emission from atomic hydrogen has been recorded across the resonances at the oxygen K edge of the water molecule using synchrotron radiation excitation. The emission is observed to be strongest at excitations to Rydberg resonances. The observations are interpreted using a qualitative model for the dynamics of the core-to-Rydberg excited molecule. The model links the quantum state of the core-excited water molecule via resonant Auger decay and subsequent dissociation to the state of the fluorescing hydrogen atom.
authors.affiliation: Department of Physics, AlbaNova University Center, Royal Institute of Technology, 10691 Stockholm, Sweden. emilio@atom.kth.se
authors.forename: E
authors.initials: E
authors.lastname: Melero García
authors.forename: A
authors.initials: A
authors.lastname: Kivimäki
authors.forename: L G M
authors.initials: LG
authors.lastname: Pettersson
authors.forename: J
authors.initials: J
authors.lastname: Alvarez Ruiz
authors.forename: M
authors.initials: M
authors.lastname: Coreno
authors.forename: M
authors.initials: M
authors.lastname: de Simone
authors.forename: R
authors.initials: R
authors.lastname: Richter
authors.forename: K C
authors.initials: KC
authors.lastname: Prince