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

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

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Abstract

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.

Authors:: Horner, Daniel A.; Vanroose, Wim; Rescigno, Thomas N.; Martin,Fernando; McCurdy, C. William

Publication Date:: 2006-10-26

Research Org.:: Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)

Sponsoring Org.:: USDOE Director. Office of Science. Basic EnergySciences

OSTI Identifier:: 927829

Report Number(s):: LBNL-62278
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: 409601; BnR: KC0301030; TRN: US200816%%1081

DOE Contract Number:: DE-AC02-05CH11231

Resource Type:: Journal Article

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Volume: 98; Related Information: Journal Publication Date: 16 February,2007; Journal ID: ISSN 0031-9007

Country of Publication:: United States

Language:: English

Subject:: 74; ABSORPTION; ASYMMETRY; DIFFERENTIAL CROSS SECTIONS; HYDROGEN; IONIZATION; NUMERICAL SOLUTION; ORIGIN; SCHROEDINGER EQUATION

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                    Horner, Daniel A., Vanroose, Wim, Rescigno, Thomas N., Martin,Fernando, and McCurdy, C. William. The Role of Nuclear Motion in the Photo-Double Ionization ofMolecular Hydrogen.  United States: N. p., 2006. 
        Web.

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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.  United States.

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                    Horner, Daniel A., Vanroose, Wim, Rescigno, Thomas N., Martin,Fernando, and McCurdy, C. William. Thu .  
        "The Role of Nuclear Motion in the Photo-Double Ionization ofMolecular Hydrogen".  United States.  https://www.osti.gov/servlets/purl/927829.

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@article{osti_927829,

  title        = {The Role of Nuclear Motion in the Photo-Double Ionization ofMolecular Hydrogen},

  author       = {Horner, Daniel A. and Vanroose, Wim and Rescigno, Thomas N. and Martin,Fernando and McCurdy, C. William},

  abstractNote = {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.},

  doi          = {},

  journal      = {Physical Review Letters},

  issn         = {0031-9007},

  number       = ,

  volume       = 98,

  place        = {United States},

  year         = {2006},

  month        = {10}

}

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