Published November 5, 2012 | Version v1
Journal article Metadata-only

Positron annihilation in hydrogen-like ions

Creators

  • 1. Department of Applied Mathematics and Theoretical Physics, Queen's University Belfast, Belfast BT7 1NN, Northern Ireland (United Kingdom)

Description

Diagrammatic many-body perturbation theory is used to calculate the scattering phase shifts, annihilation rate parameters Zeff and γ-spectra for positrons annihilating on hydrogen-like ions. The enhancement of the annihilation probability above the independent-particle approximation is found to be almost entirely due to corrections to the annihilation vertex that describe electron-positron attraction at short range.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/388/7/072017

Additional details

Identifiers

DOI
10.1088/1742-6596/388/7/072017;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
388
Journal Issue
7
Journal Page Range
[1 p.]
ISSN
1742-6596

Conference

Title
27. international conference on photonic, electronic and atomic collisions
Acronym
ICPEAC 2011
Dates
27 Jul - 2 Aug 2011
Place
Belfast, Northern Ireland (United Kingdom)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44033524
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANNIHILATION; APPROXIMATIONS; CORRECTIONS; ELECTRON-POSITRON INTERACTIONS; ELECTRONS; MANY-BODY PROBLEM; MULTICHARGED IONS; PERTURBATION THEORY; PHASE SHIFT; POSITRON-ION COLLISIONS; POSITRONS; PROBABILITY; SCATTERING
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; CALCULATION METHODS; CHARGED PARTICLES; COLLISIONS; ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; ION COLLISIONS; IONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MATTER; PARTICLE INTERACTIONS; POSITRON COLLISIONS