Observation of a molecular frame (e, 2e) cross section: an (e, 2e + M) triple coincidence study on H(2).
We report the first experimental results showing transition-specific anisotropy of molecular frame (e, 2e) cross sections. Vector correlations between the two outgoing electrons and the fragment ion have been measured for specific ionization-excitation processes of H2. The results enable us to obtain molecular frame (e, 2e) cross sections for transitions to the 2ssigma(g) and 2psigma(u) excited states of H(2)(+), thereby making stereodynamics of the electron-molecule collisions directly visible.
Takahashi
M
M
Institute for Molecular Science, Okazaki 444-8585, Japan and Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.
Watanabe
N
N
Khajuria
Y
Y
Udagawa
Y
Y
Eland
J H D
JH