Published February 21, 2006
| Version v1
Journal article
Double ionization of helium by electron and positron impact
Creators
- 1. Department of Physics, University of Kalyani, Kalyani 741 235 (India)
- 2. Laboratoire de Physique Moleculaire et des Collisions, Institut de Physique, 1 rue Arago, 57078 Metz Cedex 3 (France)
Description
We have calculated fivefold differential cross sections (FDCS) for the double ionization of He by electron and positron impact at the incident energy of 601 eV. The calculation is based on the Glauber approximation (GA) method which includes projectile-target correlation in the initial state and has contributions from higher order. A comparison is made of the present FDCS with the corresponding results of other theoretical calculations and experiment. It is found that there is a significant difference between positron- and electron-impact cross sections at this low incident energy. The shape of present FDCS is found to be in qualitative agreement with experiment
Availability note (English)
Available online at http://stacks.iop.org/0953-4075/39/955/b6_4_019.pdf or at the Web site for the Journal of Physics. B, Atomic, Molecular and Optical Physics (ISSN 1361-6455) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-4075/39/955/b6_4_019.pdf;
- DOI
- 10.1088/0953-4075/39/4/019;
- PII
- S0953-4075(06)08367-2;
Publishing Information
- Journal Title
- Journal of Physics. B, Atomic, Molecular and Optical Physics
- Journal Volume
- 39
- Journal Issue
- 4
- Journal Page Range
- p. 955-964
- ISSN
- 0953-4075
- CODEN
- JPAPEH
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37053343
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- APPROXIMATIONS; COMPARATIVE EVALUATIONS; CORRELATIONS; DIFFERENTIAL CROSS SECTIONS; ELECTRON-ATOM COLLISIONS; ELECTRONS; EV RANGE; HELIUM; IONIZATION; POSITRON-ATOM COLLISIONS; POSITRONS
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; ATOM COLLISIONS; CALCULATION METHODS; COLLISIONS; CROSS SECTIONS; ELECTRON COLLISIONS; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; EVALUATION; FERMIONS; FLUIDS; GASES; LEPTONS; MATTER; NONMETALS; POSITRON COLLISIONS; RARE GASES