Photo Double Ionizaton of Helium 100 eV and 450 eV above Threshold:  III.  Gerade and Ungerade Amplitudes and their Relative Phases

Knapp, A; Krassig, B; Kheifets, Anatoli; Bray, Igor; Weber, Thorsten; Landers, A L; Schossler, S; Jahnke, T.; Nickles, J; Kammer, S; Jagutski, O.; Schmidt, L Ph H; Schoffler, M S; Osipov, T; Prior, M H; Schmidt-Böcking, H; Cocke, C L; Dorner, R

Photo Double Ionizaton of Helium 100 eV and 450 eV above Threshold: III. Gerade and Ungerade Amplitudes and their Relative Phases

Date

2005

Authors

Knapp, A

Krassig, B

Kheifets, Anatoli

Bray, Igor

Weber, Thorsten

Landers, A L

Schossler, S

Jahnke, T.

Nickles, J

Kammer, S

Publisher

Institute of Physics Publishing

Abstract

We present a joint experimental and theoretical study of the gerade and ungerade amplitudes of the photo double ionization of helium at excess energies of 100 eV and 450 eV above the threshold. We describe a method of extracting the amplitudes from a COLTRIMS data set. The experimental results are well reproduced by convergent close-coupling (CCC) calculations. The fully differential cross section data underlying this study can be found in our companion papers immediately preceding this one.