Eur. Phys. J. D (2014) 68: 66
https://doi.org/10.1140/epjd/e2014-40784-4

Regular Article

Ionization cross-sections for positron collisions with N₂^*

UCL Department of Physics and Astronomy, University College London, Gower St, London, WC1E 6BT, UK

^a Present Address: ETH, Institute for Particle Physics, Schafmattstrasse 20, 8093 Zürich, Switzerland
^b Present Address: RIKEN, Atomic Physics Laboratory, 351-0198 Saitama, Japan
^c e-mail: g.laricchia@ucl.ac.uk

Received: 11 December 2013
Received in final form: 9 January 2014
Published online: 25 March 2014

Abstract

The total and direct ionization cross-sections for positron impact on molecular nitrogen have been measured in the energy range from 5 eV to 850 eV. The results are compared with other experimental and theoretical determinations.