Published July 2007
| Version v1
Journal article
Expectation values of the e+PsH system
Creators
- 1. ARC Center for Anti-Matter Studies, Faculty of Technology, Charles Darwin University, Darwin, Northern Territory 0909 (Australia)
- 2. Faculty of Technology, Charles Darwin University, Darwin, Northern Territory 0909 (Australia)
Description
Close to converged energies and expectation values for e+PsH are computed using a ground-state wave function consisting of 1500 explicitly correlated Gaussians. The best estimate of the e+PsH∞ energy was -0.810 254 hartrees, which has a binding energy of 0.021 057 hartrees against dissociation into e++PsH. The 2γ annihilation rate was 2.7508x109 s-1. Binding energies and annihilation rates are also given for the different finite-mass variants of e+PsH. Comparisons between expectation values for e+PsH and PsH provide compelling evidence that the e+PsH ground state can be regarded as consisting of a weakly bound positron orbiting the PsH ground state
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 76
- Journal Issue
- 1
- Journal Page Range
- p. 014501-014501.4
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39033632
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- BINDING ENERGY; COMPARATIVE EVALUATIONS; DISSOCIATION; ELECTRONS; GAUSSIAN PROCESSES; GROUND STATES; MASS; POSITRONIUM; POSITRONS; VARIATIONAL METHODS; WAVE FUNCTIONS
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; CALCULATION METHODS; ELEMENTARY PARTICLES; ENERGY; ENERGY LEVELS; EVALUATION; FERMIONS; FUNCTIONS; LEPTONS; MATTER
Optional Information
- Notes
- (c) 2007 The American Physical Society