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Positronium formation in low energy s-wave positron-helium scattering
| Content Provider | Scilit |
|---|---|
| Author | Reeth, P. Van Humberston, J. W. |
| Copyright Year | 1995 |
| Description | Journal: Journal of Physics B: Atomic, Molecular and Optical Physics A two channel version of the Kohn variational method is used with very flexible trial wavefunctions and elaborate helium target wavefunctions to obtain accurate values of the s-wave elastic and positronium-formation cross sections for positron-helium scattering in the Ore gap. The positronium-formation cross section displays a similar behaviour to that found in positron-hydrogen scattering, with a rapid rise from threshold followed by a slowly rising plateau at the higher energies. The small magnitude of this cross section is consistent with the findings of a recent analysis of the experimental results. Investigations are also made of the behaviour of the elastic-scattering cross section near to the positronium-formation threshold. |
| Related Links | http://iopscience.iop.org/article/10.1088/0953-4075/28/16/003/pdf |
| Ending Page | L517 |
| Page Count | 7 |
| Starting Page | L511 |
| ISSN | 09534075 |
| e-ISSN | 13616455 |
| DOI | 10.1088/0953-4075/28/16/003 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Issue Number | 16 |
| Volume Number | 28 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1995-08-28 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Condensed Matter Physics Elastic Scattering Variational Method Cross Section |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics |
