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

I. A. Ivanov; A. S. Kheifets

doi:10.1103/PhysRevA.79.023409

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

I. A. Ivanov
, A. S. Kheifets

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

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- V He+ and Efast =ω- VHe, there is a considerable deviation from the dipole angular distribution, thus indicating the effect of electron correlation.

Original language	English
Article number	023409
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	79
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.79.023409
Publication status	Published - 2 Feb 2009

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title = "Angular anisotropy parameters for sequential two-photon double ionization of helium",

abstract = "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- V He+ and Efast =ω- VHe, there is a considerable deviation from the dipole angular distribution, thus indicating the effect of electron correlation.",

author = "Ivanov, \{I. A.\} and Kheifets, \{A. S.\}",

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AU - Ivanov, I. A.

AU - Kheifets, A. S.

PY - 2009/2/2

Y1 - 2009/2/2

N2 - 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- V He+ and Efast =ω- VHe, there is a considerable deviation from the dipole angular distribution, thus indicating the effect of electron correlation.

AB - 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- V He+ and Efast =ω- VHe, there is a considerable deviation from the dipole angular distribution, thus indicating the effect of electron correlation.

UR - https://www.scopus.com/pages/publications/61449255954

U2 - 10.1103/PhysRevA.79.023409

DO - 10.1103/PhysRevA.79.023409

M3 - Article

SN - 1050-2947

VL - 79

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 2

M1 - 023409

ER -

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

Abstract

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