Published May 28, 2005 | Version v1
Journal article Metadata-only

The effect of dynamical screening on helium (e, 3e) differential cross-sections

Creators

  • 1. Theoretische Quantendynamik, Physikalisches Institut, Universitaet Freiburg, Hermann-Herder-Strasse 3, D-79104 Freiburg (Germany)
  • 2. PL 35 (YFL) FIN-40014 University of Jyvaeskylae (Finland)

Description

A simplified derivation of dynamic screening in the case of three Coulomb-interacting particles in the continuum is given and applied to describe the shapes of multi-differential cross-sections for the (e, 3e) process on the helium atom in which the incident fast electron is treated in first-order Born approximation. A very good agreement with experimental multi-differential cross-sections is obtained for two slow ejected electrons (specifically both electrons have 5 eV) but the strategy appears to be breaking down at intermediate emission energies

Availability note (English)

Available online at http://stacks.iop.org/0953-4075/38/1569/b5_10_014.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/0953-4075/38/1569/b5_10_014.pdf; http://www.iop.org/;
DOI
10.1088/0953-4075/38/10/014;
PII
S0953-4075(05)92072-5;

Publishing Information

Journal Title
Journal of Physics. B, Atomic, Molecular and Optical Physics
Journal Volume
38
Journal Issue
10
Journal Page Range
p. 1569-1579
ISSN
0953-4075
CODEN
JPAPEH

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36096014
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
ATOMS; BORN APPROXIMATION; COULOMB FIELD; DIFFERENTIAL CROSS SECTIONS; ELECTRON EMISSION; ELECTRON-ATOM COLLISIONS; ELECTRONS; EV RANGE; HELIUM
Descriptors DEC
ATOM COLLISIONS; COLLISIONS; CROSS SECTIONS; ELECTRIC FIELDS; ELECTRON COLLISIONS; ELEMENTARY PARTICLES; ELEMENTS; EMISSION; ENERGY RANGE; FERMIONS; FLUIDS; GASES; LEPTONS; NONMETALS; RARE GASES