Orientation dependence in multiple ionization of He2 and Ne2 induced by fast, highly charged ions: Probing the impact-parameter-dependent ionization probability in 11.37-MeV/u S14+ collisions with He and Ne

H.-K. Kim, H. Gassert, J. N. Titze, M. Waitz, J. Voigtsberger, F. Trinter, J. Becht, A. Kalinin, N. Neumann, C. Zhou, L. Ph. H. Schmidt, O. Jagutzki, A. Czasch, M. Schöffler, H. Merabet, H. Schmidt-Böcking, T. Jahnke, H. J. Lüdde, A. Cassimi, and R. Dörner
Phys. Rev. A 89, 022704 – Published 7 February 2014

Abstract

We investigate orientation effects in the fragmentation of He2 and Ne2 induced by S14+ projectiles at an impact energy of 11.37 MeV/u. Multiple ionization shows a strong dependence on the orientation of the dimer axis with respect to the projectile beam axis. We attribute these effects to the impact-parameter-dependent ionization probability P(b) for the atomic scattering process S14++He and S14++Ne and compare our data with a Monte Carlo simulation.

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  • Received 3 December 2013

DOI:https://doi.org/10.1103/PhysRevA.89.022704

©2014 American Physical Society

Authors & Affiliations

H.-K. Kim1,*, H. Gassert1, J. N. Titze1, M. Waitz1, J. Voigtsberger1, F. Trinter1, J. Becht1, A. Kalinin1, N. Neumann1, C. Zhou2, L. Ph. H. Schmidt1, O. Jagutzki1, A. Czasch1, M. Schöffler1, H. Merabet3, H. Schmidt-Böcking1, T. Jahnke1, H. J. Lüdde4, A. Cassimi2, and R. Dörner1

  • 1Institut für Kernphysik, University Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
  • 2CIMAP Caen, GANIL, Bd Henri Becquerel, BP 55027 14076 Caen Cedex 05, France
  • 3Department of Mathematics, Statistics and Physics, College of Arts and Sciences, P.O. Box: 2713 Doha, Qatar
  • 4Institut für Theoretische Physik, University Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany

  • *kim@atom.uni-frankfurt.de

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Vol. 89, Iss. 2 — February 2014

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