Next Article in Journal
Decoherence in Excited Atoms by Low-Energy Scattering
Previous Article in Journal
Evaluation of State-Resolved Reaction Probabilities and Their Application in Population Models for He, H, and H2
Previous Article in Special Issue
Series of Broad Resonances in Atomic Three-Body Systems
Article Menu

Export Article

Open AccessArticle
Atoms 2016, 4(4), 27; doi:10.3390/atoms4040027

Positron-Hydrogen Scattering, Annihilation, and Positronium Formation

Heliophysics Science Division, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA
Academic Editor: Chi Yu Hu
Received: 14 September 2016 / Revised: 19 October 2016 / Accepted: 26 October 2016 / Published: 4 November 2016
View Full-Text   |   Download PDF [433 KB, uploaded 4 November 2016]   |  

Abstract

In previous papers (Bhatia A.K. 2007, 2012) a hybrid theory for the scattering of electrons from a hydrogenic system was developed and applied to calculate scattering phase shifts, Feshbach resonances, and photoabsorption processes. This approach is now being applied to the scattering of positrons from hydrogen atoms. Very accurate phase shifts, using the Feshbach projection operator formalism, were calculated previously (Bhatia A.K. et al. 1971 and Bhatia et al. 1974a). The present results, obtained using shorter expansions in the correlation function, along with long-range correlations in the Schrödinger equation, agree very well with the results obtained earlier. The scattering length is also calculated and the present results are compared with the previous results. Annihilation cross-sections, and positronium formation cross-sections, calculated in the distorted-wave approximation, are also presented. View Full-Text
Keywords: positron scattering; annihilation; positron formation positron scattering; annihilation; positron formation
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Bhatia, A.K. Positron-Hydrogen Scattering, Annihilation, and Positronium Formation. Atoms 2016, 4, 27.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Atoms EISSN 2218-2004 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top