在相对碰撞平动能为 0 .0 5eV的分子束实验条件下 ,研究了亚稳态CO(a) +NO(X)的E E传能通道 .通过测量和分析交碰区的传能发射光谱 ,在 780和 860nm处观测到了NO(b -a)跃迁Ogawa带的△v =+ 4和△v =+ 3序的发射光谱 .从而首次在实验上直接证实了传能过程中第四通道的存在 (CO (a) +NO(X)→CO (X) +NO(b) ) .这一通道的发现解释了前人测量到的在CO(a)与NO(X)碰撞传能过程中CO(a)的猝灭速率远大于NO(A ,B)生成速率的实验结果 ,并进一步证实了这一“经典”E E传能体系为电子交换机理的传能观点 The EE channel of metastable CO (a) + NO (X) was studied under the condition of molecular beam with a relative collision translational energy of 0.05eV. By measuring and analyzing the energy transfer emission spectrum of the collision zone, The emission spectra of △ v = + 4 and △ v = + 3 of the NO (b -a) transition Ogawa band were observed at 780 and 860 nm, and thus the first experimentally directly confirmed the existence of the fourth channel in the process of energy transfer (CO (a) + NO (X) → CO (X) + NO (b)). The discovery of this channel explains the previous measurements of CO (a) and NO (a) shows that the quenching rate is much larger than that of NO (A, B) formation and further confirms the energy transfer of this “classical” EE energy transfer system to the electron exchange mechanism