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Journal Article

Experimental and theoretical study of electron-impact ionization plus excitation of aligned H2

MPS-Authors
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Ren,  Xueguang
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Dorn,  Alexander
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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http://iopscience.iop.org/0953-4075/48/11/115201
(Publisher version)

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Citation

Ali, E., Ren, X., Dorn, A., Ning, C., & Madison, D. (2015). Experimental and theoretical study of electron-impact ionization plus excitation of aligned H2. Journal of Physics B, 48(11): 115201. doi:10.1088/0953-4075/48/11/115201.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0026-C0D4-3
Abstract
We report quadruple differential cross sections for electron-impact ionization of H2 with simultaneous excitation of the of H2+ ion which will immediately dissociate. The alignment of the molecule is determined by detecting the emitted proton. The first measurements of this type were recently reported (2013 Phys. Rev. A 88 062705). Here we report measurements with much better angular resolution using the COLTRIMS method. Experimental results are compared with molecular 4-body distorted wave calculations and reasonably good agreement between experiment and theory is found.