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Angular anisotropy parameters for sequential two-photon double ionization of helium

Ivanov, Igor; Kheifets, Anatoli

Description

We evaluate photoelectron angular anisotropy β parameters for the process of sequential two-photon double electron ionization of helium within the lowest-order time-independent perturbation theory. Our results indicate that for photoelectron energies outside the interval (Eslow,Efast), where Eslow=ω−VHe+ and Efast=ω−VHe, there is a considerable deviation from the dipole angular distribution, thus indicating the effect of electron correlation.

CollectionsANU Research Publications
Date published: 2009-02-05
Type: Journal article
URI: http://hdl.handle.net/10440/999
http://digitalcollections.anu.edu.au/handle/10440/999
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.79.023409

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