Abstract

Recent results for positron scattering from noble gases over an energy range from 0.5 to 60eV are presented. Measurements include the grand total (σGT), Ps formation (σPs) and Grand total – Ps formation ((σGT-Ps) cross sections. Some preliminary DCS results will also be presented. Work on a formulation of modified effective range theory (MERT) is being undertaken to determine the value of the scattering length [1] which may be useful for identifying a bound state. Plans for experiments on metal atoms will be outlined.

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