A search for Wigner cusps and resonances in positron scattering by atoms and molecules
| dc.contributor.author | Caradonna, P. | en |
| dc.contributor.author | Makochekanwa, C. | en |
| dc.contributor.author | Jones, A. | en |
| dc.contributor.author | MacHacek, J. R. | en |
| dc.contributor.author | Sullivan, J. P. | en |
| dc.contributor.author | Buckman, S. J. | en |
| dc.date.accessioned | 2025-06-15T13:33:45Z | |
| dc.date.available | 2025-06-15T13:33:45Z | |
| dc.date.issued | 2012 | en |
| dc.description.abstract | Detailed elastic cross-section measurements in the vicinity of the positronium (Ps) formation threshold for He, Ne, Ar, Kr and Xe show a cusp-like feature, made visible by a small and localised depression of between (2 to 15%) of the cross-section value. Other near-threshold structures such as scattering resonances have been demonstrated in close-coupling and convergent-close- coupling calculations for helium. This investigation is undertaken to explicitly search for the presence or otherwise of scattering structures using a high efficiency (∼ 1 % statistical uncertainty) and high resolution (< 70 meV) transmission based apparatus. | en |
| dc.description.status | Peer-reviewed | en |
| dc.identifier.other | Scopus:84870623356 | en |
| dc.identifier.other | ARIES:f5625xPUB2675 | en |
| dc.identifier.other | ORCID:/0000-0003-4489-4926/work/162210591 | en |
| dc.identifier.uri | http://www.scopus.com/inward/record.url?scp=84870623356&partnerID=8YFLogxK | en |
| dc.identifier.uri | https://hdl.handle.net/1885/733761998 | |
| dc.language.iso | en | en |
| dc.relation.ispartofseries | 27th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2011 | en |
| dc.source | Journal of Physics: Conference Series | en |
| dc.title | A search for Wigner cusps and resonances in positron scattering by atoms and molecules | en |
| dc.type | Conference paper | en |
| local.contributor.affiliation | Caradonna, P.; Atomic and Molecular Physics Research, Research School of Physics, ANU College of Science and Medicine, The Australian National University | en |
| local.contributor.affiliation | Makochekanwa, C.; Atomic and Molecular Physics Research, Research School of Physics, ANU College of Science and Medicine, The Australian National University | en |
| local.contributor.affiliation | Jones, A.; Atomic and Molecular Physics Research, Research School of Physics, ANU College of Science and Medicine, The Australian National University | en |
| local.contributor.affiliation | MacHacek, J. R.; Atomic and Molecular Physics Research, Research School of Physics, ANU College of Science and Medicine, The Australian National University | en |
| local.contributor.affiliation | Sullivan, J. P.; Atomic and Molecular Physics Research, Research School of Physics, ANU College of Science and Medicine, The Australian National University | en |
| local.contributor.affiliation | Buckman, S. J.; Atomic and Molecular Physics Research, Research School of Physics, ANU College of Science and Medicine, The Australian National University | en |
| local.identifier.citationvolume | 388 | en |
| local.identifier.doi | 10.1088/1742-6596/388/7/072012 | en |
| local.identifier.pure | 1d6214b8-0d1a-4c79-9c06-2597168b5806 | en |
| local.type.status | Published | en |