The Role of Nuclear Motion in the Photo-Double Ionization ofMolecular Hydrogen

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We examine the origin of recently observed variations with internuclear distance (R) of the fully differential cross sections for double ionization of aligned H2 by absorption of a single photon. Using the results of fully converged numerical solutions of the Schroedinger equation, we show that these variations arise primarily from pronounced differences in the R-dependence of the parallel and perpendicular components of the ionization amplitude. We also predict that R-dependences should be readily observable in the asymmetry parameter for photo-double ionization, even in experimental measurements that are not differential in the energy sharings between ejected photo-electrons.

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Horner, Daniel A.; Vanroose, Wim; Rescigno, Thomas N.; Martin,Fernando & McCurdy, C. William October 26, 2006.

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We examine the origin of recently observed variations with internuclear distance (R) of the fully differential cross sections for double ionization of aligned H2 by absorption of a single photon. Using the results of fully converged numerical solutions of the Schroedinger equation, we show that these variations arise primarily from pronounced differences in the R-dependence of the parallel and perpendicular components of the ionization amplitude. We also predict that R-dependences should be readily observable in the asymmetry parameter for photo-double ionization, even in experimental measurements that are not differential in the energy sharings between ejected photo-electrons.

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  • Journal Name: Physical Review Letters; Journal Volume: 98; Related Information: Journal Publication Date: 16 February,2007

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  • Report No.: LBNL--62278
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 927829
  • Archival Resource Key: ark:/67531/metadc899181

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  • October 26, 2006

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 3:58 p.m.

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Horner, Daniel A.; Vanroose, Wim; Rescigno, Thomas N.; Martin,Fernando & McCurdy, C. William. The Role of Nuclear Motion in the Photo-Double Ionization ofMolecular Hydrogen, article, October 26, 2006; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc899181/: accessed September 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.