corner
corner
APS » Journals » Phys. Rev. A » Volume 72 » Issue 1
< Previous Article | Next Article >

Phys. Rev. A 72, 012718 (2005) [3 pages]

Three-Coulomb-wave Pluvinage model for Compton double ionization of helium in the region of the cross-section maximum

Download: PDF (58 kB) Buy this article Export: BibTeX or EndNote (RIS)

S. Jones1,2,*, Joseph H. Macek1,3, and D. H. Madison2
1Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1501, USA
2Laboratory for Atomic, Molecular and Optical Research, Physics Department, University of Missouri-Rolla, Rolla, Missouri 65409-0640, USA
3Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6373, USA

Received 15 March 2005; published 29 July 2005

Double ionization of ground-state helium by the Compton scattering of a photon is calculated using the well-known product of three Coulomb waves (3C) wave function for the final double-continuum state of the atom and the Pluvinage wave function for the initial ground state (also a product of three Coulomb waves). The theoretical model fails to predict both the shape and the overall magnitude of the observed integrated cross section vs incident-photon energy. However, when the monopole part of the electron-photon interaction is removed by an ad hoc procedure, qualitative agreement is obtained, although the absolute size of the cross section is still almost an order of magnitude too large.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.012718
DOI:
10.1103/PhysRevA.72.012718
PACS:
32.80.Cy

*Present address: Physics Department, University of Missouri-Rolla, Rolla, MO 65409-0640

 
< Previous Article | Next Article >