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Equal energy sharing double photoionization of the helium atom at 20 eV and 40 eV above threshold
J N DAS, K CHAKRABUTI, S PAUL
Published in Elsevier
2003
Volume: 316
   
Issue: 6
Pages: 400 - 406
Abstract
In this Letter we present triple differential cross sections for equal energy sharing kinematics for double photoionization of the helium atom at 20 and 40 eV above threshold in the framework of the hyperspherical partial wave theory. This supplements our earlier work [J. Phys. B: At. Mol. Opt. Phys. 36 (2003) 2707] in which we were successful in showing fully, gauge independence of the results in our formalism. Also in this Letter we treat cases in which the Stokes parameter S1 < 1 so that partial polarization of the photon source is also taken into account. Agreement in shape with the convergent close coupling [A.S. Kheifets, 2003, private communication; H. Bräuning, et al., J. Phys. B: At. Mol. Opt. Phys. 31 (1998) 5149] calculation and the experiments appears to be excellent. © 2003 Elsevier B.V. All rights reserved.
About the journal
JournalData powered by TypesetPhysics Letters, Section A: General, Atomic and Solid State Physics
PublisherData powered by TypesetElsevier
ISSN0375-9601
Open AccessYes