Importance of Thomas single-electron transfer in fast p-He collisions
2010 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 81, no 1, 12714- p.Article in journal (Refereed) Published
We report experimental angular differential cross sections for nonradiative single-electron capture in p-He collisions (p + He -> H + He+) with a separate peak at the 0.47 mrad Thomas scattering angle for energies in the 1.3-12.5 MeV range. We find that the intensity of this peak scales with the projectile velocity as v(P)(-11). This constitutes the first experimental test of the prediction from 1927 by L. H. Thomas [Proc. R. Soc. 114, 561 (1927)]. At our highest energy, the peak at the Thomas angle contributes with 13.5% to the total integrated nonradiative single-electron capture cross section.
Place, publisher, year, edition, pages
2010. Vol. 81, no 1, 12714- p.
IdentifiersURN: urn:nbn:se:su:diva-49677DOI: 10.1103/PhysRevA.81.012714ISI: 000277958100023OAI: oai:DiVA.org:su-49677DiVA: diva2:379558
authorCount :122010-12-172010-12-172011-12-27Bibliographically approved