Abstract
Absolute differential elastic and vibrational excitation cross sections have been measured for CH4 at 90° and from 0.1 to 1.5 eV, with the resolution of all four vibrational modes. Threshold peaks were observed in the excitation of the ν1, ν3 and ν4 modes, but not in the ν2 mode. These results are in good agreement with the recent calculation of Nishimura and Gianturco (2002 J. Phys. B: At. Mol. Opt. Phys. 35 2873). No near-threshold structures were observed.
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More From: Journal of Physics B: Atomic, Molecular and Optical Physics
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