Charles Darwin University

CDU eSpace
Institutional Repository

CDU Staff and Student only

Expectation values of the e+He(Se3) system

Mitroy, Jim (2005). Expectation values of the e+He(Se3) system. Physical Review A (Atomic, Molecular and Optical Physics),72(3):32503-1-32501-6.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 11 times in Scopus Article | Citations

Google Scholar Search Google Scholar
Attached Files (Some files may be inaccessible until you login with your CDU eSpace credentials)
Name Description MIMEType Size Downloads
Download this reading Mitroy_1741.pdf Published version application/pdf 81.60KB 43
Reading the attached file works best in Firefox, Chrome and IE 9 or later.

IRMA ID 80791673xPUB77
Title Expectation values of the e+He(Se3) system
Author Mitroy, Jim
Journal Name Physical Review A (Atomic, Molecular and Optical Physics)
Publication Date 2005
Volume Number 72
Issue Number 3
ISSN 1094-1622   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-28844493118
Start Page 32503-1
End Page 32501-6
Total Pages 6
Place of Publication College Park, United States
Publisher American Physical Society
Field of Research 0202 - Atomic, Molecular, Nuclear, Particle and Plasma Physics
0204 - Condensed Matter Physics
0205 - Optical Physics
HERDC Category C1 - Journal Article (DEST)
Abstract Close to converged energies and expectation values for e+He(3Se) are computed using a ground state wave function consisting of 1500 explicitly correlated Gaussians. The best estimate of the e+He(3Se) energy was –2.250 595 08 hartree, which has a binding energy of 0.000 595 08 hartree against dissociation into Ps+He+. The 2gamma annihilation rate for the spin doublet state was 5.713×109 s–1. The estimated annihilation rate with the core He+ electron was 2.506×106 s–1. The derived enhancement factor for annihilation with the He+(1s) core was 2.29, just over 10% smaller than the enhancement factor derived from analyses of annihilation during e+-He+ scattering. The diffuse nature of the wave function, with well separated He+ and Ps subsystems, is demonstarted to be on the threshold of satisfying the formal criteria that define a quantum halo state.
DOI   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
Additional Notes Copyright by the The American Physical Society

© copyright

Every reasonable effort has been made to ensure that permission has been obtained for items included in CDU eSpace. If you believe that your rights have been infringed by this repository, please contact

Version Filter Type
Access Statistics: 62 Abstract Views, 44 File Downloads  -  Detailed Statistics
Created: Fri, 12 Sep 2008, 08:35:25 CST by Administrator