Differential cross section measurements for ionisation of N2 in coplanar geometry
Ahmad Sakaamini1, Matthew Harvey1, Sadek Amami2, Andrew James Murray1, Chuangang Ning3 and Don Madison2
1 Photon Science Institute, School of Physics & Astronomy, University of Manchester, Manchester M13 9PL, UK
2 Missouri University of Science & Technology, Rolla. MO 65409-0640, USA
3 Department of Physics, State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 100084, People’s Republic of China
Published 17 January 2018 • © 2018 IOP Publishing Ltd
Abstract. Triple differential cross section measurements for ionisation of N2 are presented in a coplanar geometry where one of the outgoing electrons was fixed in angle. Data were obtained at incident electron energies 20 and 40 eV above the ionisation potential for the 3σg and 1πu states, the outgoing electrons carrying equal energies. Six sets of measurements were obtained at each energy, with fixed angles of 45°, 90° and 125° to the incident electron direction. The data are compared to new calculations using distorted wave methods.