Nuclear Alignment of theS01Ground State ofXe131by Electron Pumping and Metastability-Exchange Collisions

An alignment of a nucleus in the ${}_{}{}^1{}_{}{}^{}S_0^{}{}_{}{}^{}$ ground state of ${}_{}{}^{131}{}_{}{}^{}\mathrm{Xe}$ was achieved through exchange collisions with atoms in the metastable state formed and aligned by electron impact. It was observed by monitoring the change of linearly polarized resonance radiation by the $\mathrm{Xe}\left({}_{}{}^3{}_{}{}^{}P_2^{}{}_{}{}^{}\right)$ metastable state as we caused a nuclear magnetic resonance.