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Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/80293
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dc.contributor.authorPfluger, T.en
dc.contributor.authorHolzwarth, M.en
dc.contributor.authorSenftleben, A.en
dc.contributor.authorRen, X. N.en
dc.contributor.authorDorn, A.en
dc.contributor.authorUllrich, J.en
dc.contributor.authorHargreaves, Leigh Randallen
dc.contributor.authorLohmann, Birgiten
dc.contributor.authorSlaughter, D. S.en
dc.contributor.authorSullivan, J. P.en
dc.contributor.authorLower, J.en
dc.contributor.authorBuckman, Stephen J.en
dc.date.issued2011en
dc.identifier.citationJournal of Physics: Conference Series, 2011; 262:012047en
dc.identifier.issn1742-6588en
dc.identifier.urihttp://hdl.handle.net/2440/80293-
dc.description12th International Workshop on Slow Positron Beam Techniques (SLOPOS12), 1–6 August 2010, Magnetic Island, North Queensland, Australiaen
dc.description.abstractPositron impact ionization of helium is studied with fully resolved momentum vectors of all continuum particles. An imaging multi-particle momentum spectrometer (reaction microscope) detecting all final state particles over the full solid angle was applied. This apparatus was connected to the NEPOMUC facility delivering intense positron beams tuneable over a large energy range with good beam quality. At 80 eV impact energy about 5000 triple coincidence events were collected. Cross sections as function of the longitudinal particle momentum show strong differences compared to respective electron impact ionization data most likely originating from the reversed post collision interaction in both cases. Calculations using the 3 Coulomb wavefunction method show clear discrepancies from the experimental results.en
dc.description.statementofresponsibilityT Pflüger, M Holzwarth, A Senftleben, X Ren, A Dorn, J Ullrich, L R Hargreaves, B Lohmann, D S Slaughter, J P Sullivan, J C Lower and S J Buckmanen
dc.language.isoenen
dc.publisherInstitute of Physics Publishingen
dc.rightsCopyright status unknownen
dc.titleKinematically complete experiments for positron-impact ionization of helium atoms at the NEPOMUC facilityen
dc.typeConference paperen
dc.contributor.schoolSchool of Chemistry and Physicsen
dc.contributor.conferenceInternational Workshop on Slow Positron Beam Techniques (12th : 2010 : Magnetic Island, Australia)en
dc.identifier.doi10.1088/1742-6596/262/1/012047en
Appears in Collections:Chemistry and Physics publications

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