Total absolute collision cross section measurements using a metastable neon magneto optical trap

Abstract

We present progress towards measurements of total absolute collision cross sections of the 3P2 metastable state and the 3D3 excited state of neon with ground state noble gases utilizing a metastable neon magneto optical trap. The measurement is achieved by observing the decay rate of the trap as a function of added partial pressure of a noble gas. This technique will enable benchmark cross sections to be measured there by providing stringent tests of current quantum mechanical scattering calculations.