Weber, Th.; Czasch, A.; Jagutzki, O.; Mueller, A.; Mergel, V.; Kheifets, A.; Feagin, J.; Rotenberg, E.; Meigs, G.; Prior, M.H.; Daveau, S.; Landers, A.L.; Cocke, C.L.; Osipov, T.; Schmidt-Boecking, H.; Doerner, R.

Fully differential cross sections for photo-double-ionization of D{sub 2}

2003

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 photonenergy 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.

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Lawrence Berkeley National Laboratory

Fully differential cross sections for photo-double-ionization of D{sub 2}