title: Fully differential cross sections for photo-double-ionization of D2.
abstract: We report the first kinematically complete study of the four-body fragmentation of the D2 molecule following absorption of a single photon. For equal energy sharing of the two electrons and a photon energy of 75.5 eV, we observed the relaxation of one of the selection rules valid for He photo-double-ionization and a strong dependence of the electron angular distribution on the orientation of the molecular axis. This effect is reproduced by a model in which a pair of photoionization amplitudes is introduced for the light polarization parallel and perpendicular to the molecular axis.
authors.affiliation: Institut für Kernphysik, Universität Frankfurt, D 60486 Frankfurt, Germany.
authors.forename: Th
authors.initials: T
authors.lastname: Weber
authors.forename: A
authors.initials: A
authors.lastname: Czasch
authors.forename: O
authors.initials: O
authors.lastname: Jagutzki
authors.forename: A
authors.initials: A
authors.lastname: Müller
authors.forename: V
authors.initials: V
authors.lastname: Mergel
authors.forename: A
authors.initials: A
authors.lastname: Kheifets
authors.forename: J
authors.initials: J
authors.lastname: Feagin
authors.forename: E
authors.initials: E
authors.lastname: Rotenberg
authors.forename: G
authors.initials: G
authors.lastname: Meigs
authors.forename: M H
authors.initials: MH
authors.lastname: Prior
authors.forename: S
authors.initials: S
authors.lastname: Daveau
authors.forename: A L
authors.initials: AL
authors.lastname: Landers
authors.forename: C L
authors.initials: CL
authors.lastname: Cocke
authors.forename: T
authors.initials: T
authors.lastname: Osipov
authors.forename: H
authors.initials: H
authors.lastname: Schmidt-Böcking
authors.forename: R
authors.initials: R
authors.lastname: Dörner