Abstract
The S, T, U parameters of sodium from S→P state excited by electron, which can describe the changes of spin moment before and after collision, are calculated using the distorded wave Born approach with the scattering amplitudes and phases. We analyze the S,T,U parameters under the incident electron energy from 2.2 to 60 eV. The Sp parameter better coincides with reported experiment at 10 eV incident electron energy. All results show that the distribution changes are more obvious at lower incident energy than at higher energy.
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