Absolute triple differential cross sections for photo-double ionization of helium - Experiment and theory

H. Bräuning; R. Dörner; C. L. Cocke; M. H. Prior; B. Krässig; A. S. Kheifets; I. Bray; A. Bräuning-Demian; K. Carnes; S. Dreuil; V. Mergel; P. Richard; J. Ullrich; H. Schmidt-Böcking

doi:10.1088/0953-4075/31/23/012

Absolute triple differential cross sections for photo-double ionization of helium - Experiment and theory

H. Bräuning^*, R. Dörner, C. L. Cocke, M. H. Prior, B. Krässig, A. S. Kheifets, I. Bray, A. Bräuning-Demian, K. Carnes, S. Dreuil, V. Mergel, P. Richard, J. Ullrich, H. Schmidt-Böcking

^*Corresponding author for this work

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

137 Citations (Scopus)

Abstract

We have measured absolute triple differential cross sections for photo-double ionization of helium at 20 eV excess. The measurement covers the full ranges of energy sharing and emission angles of the two photoelectrons. We compare our data for selected geometries with the convergent close-coupling (CCC) calculations as well as 2SC calculations by Pont and Shakeshaft and 3C calculations by Maulbetsch and Briggs. In terms of the absolute magnitude and the trend in the shapes of the triple differential cross section for different geometries we find good agreement of the CCC and published 2SC calculations with our measurement, though differences with respect to the observed shape of individual patterns still exist.

Original language	English
Pages (from-to)	5149-5160
Number of pages	12
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	31
Issue number	23
DOIs	https://doi.org/10.1088/0953-4075/31/23/012
Publication status	Published - 14 Dec 1998

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Bräuning, H., Dörner, R., Cocke, C. L., Prior, M. H., Krässig, B., Kheifets, A. S., Bray, I., Bräuning-Demian, A., Carnes, K., Dreuil, S., Mergel, V., Richard, P., Ullrich, J., & Schmidt-Böcking, H. (1998). Absolute triple differential cross sections for photo-double ionization of helium - Experiment and theory. Journal of Physics B: Atomic, Molecular and Optical Physics, 31(23), 5149-5160. https://doi.org/10.1088/0953-4075/31/23/012

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title = "Absolute triple differential cross sections for photo-double ionization of helium - Experiment and theory",

abstract = "We have measured absolute triple differential cross sections for photo-double ionization of helium at 20 eV excess. The measurement covers the full ranges of energy sharing and emission angles of the two photoelectrons. We compare our data for selected geometries with the convergent close-coupling (CCC) calculations as well as 2SC calculations by Pont and Shakeshaft and 3C calculations by Maulbetsch and Briggs. In terms of the absolute magnitude and the trend in the shapes of the triple differential cross section for different geometries we find good agreement of the CCC and published 2SC calculations with our measurement, though differences with respect to the observed shape of individual patterns still exist.",

author = "H. Br{\"a}uning and R. D{\"o}rner and Cocke, {C. L.} and Prior, {M. H.} and B. Kr{\"a}ssig and Kheifets, {A. S.} and I. Bray and A. Br{\"a}uning-Demian and K. Carnes and S. Dreuil and V. Mergel and P. Richard and J. Ullrich and H. Schmidt-B{\"o}cking",

year = "1998",

month = dec,

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doi = "10.1088/0953-4075/31/23/012",

language = "English",

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Bräuning, H, Dörner, R, Cocke, CL, Prior, MH, Krässig, B, Kheifets, AS, Bray, I, Bräuning-Demian, A, Carnes, K, Dreuil, S, Mergel, V, Richard, P, Ullrich, J & Schmidt-Böcking, H 1998, 'Absolute triple differential cross sections for photo-double ionization of helium - Experiment and theory', Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 31, no. 23, pp. 5149-5160. https://doi.org/10.1088/0953-4075/31/23/012

TY - JOUR

T1 - Absolute triple differential cross sections for photo-double ionization of helium - Experiment and theory

AU - Bräuning, H.

AU - Dörner, R.

AU - Cocke, C. L.

AU - Prior, M. H.

AU - Krässig, B.

AU - Kheifets, A. S.

AU - Bray, I.

AU - Bräuning-Demian, A.

AU - Carnes, K.

AU - Dreuil, S.

AU - Mergel, V.

AU - Richard, P.

AU - Ullrich, J.

AU - Schmidt-Böcking, H.

PY - 1998/12/14

Y1 - 1998/12/14

N2 - We have measured absolute triple differential cross sections for photo-double ionization of helium at 20 eV excess. The measurement covers the full ranges of energy sharing and emission angles of the two photoelectrons. We compare our data for selected geometries with the convergent close-coupling (CCC) calculations as well as 2SC calculations by Pont and Shakeshaft and 3C calculations by Maulbetsch and Briggs. In terms of the absolute magnitude and the trend in the shapes of the triple differential cross section for different geometries we find good agreement of the CCC and published 2SC calculations with our measurement, though differences with respect to the observed shape of individual patterns still exist.

AB - We have measured absolute triple differential cross sections for photo-double ionization of helium at 20 eV excess. The measurement covers the full ranges of energy sharing and emission angles of the two photoelectrons. We compare our data for selected geometries with the convergent close-coupling (CCC) calculations as well as 2SC calculations by Pont and Shakeshaft and 3C calculations by Maulbetsch and Briggs. In terms of the absolute magnitude and the trend in the shapes of the triple differential cross section for different geometries we find good agreement of the CCC and published 2SC calculations with our measurement, though differences with respect to the observed shape of individual patterns still exist.

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U2 - 10.1088/0953-4075/31/23/012

DO - 10.1088/0953-4075/31/23/012

M3 - Article

SN - 0953-4075

VL - 31

SP - 5149

EP - 5160

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

IS - 23

ER -

Absolute triple differential cross sections for photo-double ionization of helium - Experiment and theory

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