Abstract
Relative triple differential cross section for the coplanar asymmetric (e, 2e) reaction in argon have been measured at 1.5 KeV incident energy and 40 eV ejected electron energy in several kinematics. Depending on the scattering angle, ϑ a , the chosen kinematics select either ionising collisions belonging to the Bethe ridge (ϑ a =9.2°) or processes in the intermediate region between the pure dipolar and binary regimes. The more relevant finding is the presence of a minimum in the recoil lobe, almost opposite to the direction of the momentum transfer. This feature is qualitatively explained by a first Born model, which describes the ejected electron by a Coulomb wave-function. This result suggests that in the investigated kinematics the interaction of the slow ejected electron with the residual ion is the dominant effect beyond the first order electron-electron interactions.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ehrhardt H., Jung K., Knoth G., Schlemmer P.: Z. Phys. D Atoms, Molecules and Clusters1, 3 (1986)
Fournier-Lagarde P., Mazeau J., Huetz A.: J. Phys. B: At. Mol. Phys.17, L5 (1984)
Avaldi L., Camilloni R., Fainelli E., Stefani G., Klar H., Franz A., McCarthy I.E.: J. Phys. B: At. Mol. Phys.20, 5827 (1987)
Lahmam-Bennani A., Wellenstein H.F., Dal Capello C., Rouault M., Duguet A.: J. Phys. B: At. Mol. Phys.16, 2219 (1983)
Lahmam-Bennani A., Wellenstein H.F., Dal Cappello C., Duguet A.: J. Phys. B: At. Mol. Phys.17, 3159 (1984)
Lahmam-Bennani A., Avaldi L., Fainelli E., Stefani G.: J. Phys. B: At. Mol. Opt. Phys.21, 2145 (1988)
Byron F.W. Jr., Joachain C.J., Piraux B.: J. Phys. B: At. Mol. Phys.13, L673 (1980)
Byron F.W. Jr., Jochain C.J., Piraux B.: J. Phys. B: At. Mol. Phys.16, L769 (1983)
Brauner M., Briggs J.S., Klar H.: J. Phys. B: At. Mol. Opt. Phys.22, 2265 (1989)
McCarthy I.E., Weigold E.: Phys. Rep. C27, 275 (1976)
Lahmam-Bennani A., Wellenstein H.F., Duguet A., Rouault M.: J. Phys. B: At. Mol. Phys.16, 121 (1983)
Daoud A., Lahmam-Bennani A., Duguet A., Dal Cappello C., Tavard C.: J. Phys. B: At. Mol. Phys.18, 1411 (1985)
Avaldi L., McCarthy I.E., Stefani G.: J. Phys. B: At. Mol. Opt. Phys.22, 3305 (1989)
Avaldi L., Stefani G., McCarthy I.E., Zhang X.: J. Phys. B: At. Mol. Opt. Phys.22, 3079 (1989)
Brothers M.J., Bonham R.A.: J. Phys. B: At. Mol. Phys.17, 4235 (1984)
Dal Cappello C., Tavard C., Lahmam-Bennani A., Dal Capello M.C.: J. Phys. B: At. Mol. Phys.17, 4557 (1984)
Stefani G., Camilloni R., Giardini G.: Phys. Lett.64A, 364 (1978)
Lahmam-Bennani A., Wellestein H.F., Duguet A., Lecas M.: Rev. Sci. Instrum.56, 43 (1985)
Jansen R.H.J., de Heer F.J., Leyken H.J., van Wingerden B., Blaauw H.J.: J. Phys. B: At. Mol. Phys.9, 185 (1976)
Avaldi L., Camilloni R., Fainelli E., Stefani G.: Nuovo Cimento D9, 97 (1987)
Kim Y.-K.: Phys. Rev. A33, 2103 (1986)
Camilloni R., Giardini-Guidoni A., McCarthy I.E., Stefani G.: Phys. Rev. A17, 1634 (1978)
Das J.N., Biwas A.K.: Czech. J. Phys. B38, 1140 (1988)
Bagus P.S.: Phys. Rev.139, 619 (1965)
Avaldi L., Camilloni R., Popov Yu.V., Stefani G.: Phys. Rev. A33, 851 (1986)
Byron F.W., Joachain C.J.: Phys. Rep.179, 211 (1989)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Avaldi, L., Camilloni, R., Dal Cappello, C. et al. Ionisation dynamics at intermediate momentum transfer: an (e, 2e) investigation on argon. Z Phys D - Atoms, Molecules and Clusters 16, 107–112 (1990). https://doi.org/10.1007/BF01679571
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01679571