Double Photoionization of Aligned Molecular Hydrogen

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

doi:10.1103/PhysRevA.74.052702

Title: Double Photoionization of Aligned Molecular Hydrogen

Journal Article · Fri Jul 21 00:00:00 EDT 2006 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.74.052702· OSTI ID:920164

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

We present converged, completely ab initio calculations ofthe triple differential cross sections for double photoionization ofaligned H2 molecules for a photon energy of 75.0 eV. The method ofexterior complex scaling, implemented with both the discrete variablerepresentation and B-splines, is used to solve the Schroedinger equationfor a correlated continuum wave function corresponding to a single photonhaving been absorbed by a correlated initial state. Results for a fixedinternuclear distance are compared with recent experiments and show thatintegration over experimental angular and energy resolutions is necessaryto produce good qualitative agreement, but does not eliminate somediscrepancies. Limitations of current experimental resolution are shownto sometimes obscure interesting details of the crosssection.

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Research Organization:: COLLABORATION - Katholieke U.Leuven/Belgium

Sponsoring Organization:: USDOE

DOE Contract Number:: DE-AC02-05CH11231

OSTI ID:: 920164

Report Number(s):: LBNL-61191; R&D Project: 409601; BnR: KC0301030

Journal Information:: Physical Review A, Vol. 74, Issue 5; Related Information: Journal Publication Date: 11/2006

Country of Publication:: United States

Language:: English

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