title: Experimental evidence for ultrafast electronic relaxation in molecules, mediated by diffuse states.
abstract: The existence of a mediating state for the ultrafast electronic relaxation in ethylenic-like molecules has been shown by femtosecond electron imaging techniques. This state is of Rydberg character, and its high efficiency is due to its ability to link the electron distributions of the initial and final electronic states.
authors.affiliation: Laboratoire Francis Perrin, CNRS-URA-2453, DSM/DRECAM/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France.
authors.forename: Eric
authors.initials: E
authors.lastname: Gloaguen
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Mestdagh
authors.forename: Lionel
authors.initials: L
authors.lastname: Poisson
authors.forename: Fabien
authors.initials: F
authors.lastname: Lepetit
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Visticot
authors.forename: Benoit
authors.initials: B
authors.lastname: Soep
authors.forename: Marcela
authors.initials: M
authors.lastname: Coroiu
authors.forename: André T J B
authors.initials: AT
authors.lastname: Eppink
authors.forename: David H
authors.initials: DH
authors.lastname: Parker