APPLICATION OF QUANTUM STATE RECONSTRUCTION VIA OPTICAL FORCES TO ELECTRON ATOM SCATTERING EXPERIMENTS B.T.H. Varcoe*, R.T. Sang, W.R. MacGillivray and M.C. Standage Laser Atomic Physics Laboratory, School of Science, Griffith University, Nathan 4111 Australia *Max-Planck-Institut Fuer QuantenOptik, Hans-Kopferman Str 1, D85748 Garching bei Muenchen In this paper we will present a new technique to obtain electron-atom scattering atomic collision parameters using quantum state reconstruction via optical forces. We will present the results of an experimental investigation which demonstrates the feasibility of the technique using a quantum state engineered atomic beam.