Differential cross sections in antiproton- and proton-helium collisions

Authors
Khayyat, K Weber, P Dorner, R Achler, M Mergel, V Spielberger, L Jagutzki, O Meyer, U Ullrich, J Moshammer, R Schmitt, W Knudsen, H Mikkelsen, U Aggerholm, P Uggerhoej, E Moeller, SP Rodriguez, VD O'Rourke, SFC Olson, RE Fainstein, PD McGuire, JH Schmidt-Bocking, H
Citation
K. Khayyat et al., Differential cross sections in antiproton- and proton-helium collisions, J PHYS B, 32(4), 1999, pp. L73-L79
Citations number
37
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
ISSN journal
09534075 → ACNP
Volume
32
Issue
4
Year of publication
1999
Pages
L73 - L79
Database
ISI
SICI code
0953-4075(19990228)32:4<L73:DCSIAA>2.0.ZU;2-T
Abstract
Cross sections are presented for the first time for antiproton-helium colli sions at an energy of 945 keV differential in longitudinal electron and rec oil-ion momenta. The longitudinal momentum distributions for antiproton imp act are compared with 1 MeV proton-helium collision. The electron and the r ecoil-ion momentum distributions for antiprotons agree with those for proto ns to within 10%. We did not observe a difference between antiproton impact and proton impact. A comparison with CDW and CTMC theories is presented.