Observation of a molecular frame (e, 2e) cross section: an (e, 2e + M) triple coincidence study on H(2) |
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| Authors: | Takahashi M Watanabe N Khajuria Y Udagawa Y Eland J H D |
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| Institution: | Institute for Molecular Science, Okazaki 444-8585, Japan and Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan. |
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| Abstract: | 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. |
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