The State Distribution of NH₂（òA₁） Produced in the Collision of Ar(³P_0,2)+NH₃

Abstract Study on the state distribution of nascent product \mathrmNH_2\left(\widetilde\mathrm~A^2 \mathrm~A_1\right) in the reaction of \mathrmAr\left( ^3 \mathrmP_0,2\right)+\mathrmNH_3 under beam condition has been reported firstly herein. The emission spectra of \mathrmNH_2(\widetilde\mathrm~A-\widetilde\mathrmX) were assigned in detail. Most of the emission bands are attributed to ( 0, v_2^\prime, 0 ) -(0,0,0) transition with v_2^\prime \leqslant 5, k^\prime a \leqslant 6, J^\prime \leqslant 10. Rotational temperature around b / c axis of level \left(0,2,0, K^\prime a=1\right) is 1050 K, which is higher than that of the parent \mathrmNH_3. It should be attributed to the recoil effect of collisive partner when Ar separates from \mathrmNH_3.