电子、质子与氮分子碰撞时Meinel和第一负带系的激发
Excitation of Meinel and first negative band system at the collision of electron and proton with nitrogen molecule
摘要：
在400-1500 eV（电子）和0.4-10 keV（质子）能量范围内，测量了B $^{2}Σ_{u}^{+}-$ X $^{2}Σ_{g}^{+}$和Meinel A% $^{2}Π_{u}-$ X $^{2}Σ_{g}^{+}$第一负带的$e-$ N $_{2}$和$p-$ N $_{2}$碰撞的绝对截面.通过光谱法在400-800 nm的可见光谱区域内进行测量。Meinel带系的截面与第一负带系的截面（0，0）的比率不依赖于入射电子能量。A $^{2}Π_{u}$态振动能级的布居符合Franck-Condon原理。（4，1）与（3，0）带和（5，2）与（3，0）带的截面比与质子能量略有依赖性。准分子近似下的理论估算为第一负带的总截面提供了合理的描述。
英文摘要：
Absolute cross sections for the $e-$N$_{2}$ and $p-$N$_{2}$ collisions for the first negative B$^{2}Σ_{u}^{+}-$X$^{2}Σ_{g}^{+}$ and Meinel A% $^{2}Π_{u}-$X$^{2}Σ_{g}^{+}$ bands have been measured in the energy region of 400-1500 eV for electrons and 0.4-10 keV for protons, respectively. Measurements are performed in the visible spectral region of 400-800 nm by an optical spectroscopy method. The ratio of the cross sections of the Meinel band system to the cross section of the first negative band system (0,0) does not depend on the incident electron energy. The population of vibrational levels corresponding to A$^{2}Π_{u}$ states are consistent with Franck-Condon principle. The ratio of the cross sections of (4,1) to (3,0) bands, and (5,2) to (3,0) bands exhibits slight dependence on the proton energy. The theoretical estimation within the quasimolecular approximation provides a reasonable description of the total cross section for the first negative band.
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