论文标题
O（$^3p $） +超热碰撞能量的量子力学研究
A quantum-mechanical investigation of O($^3P$) + CO scattering cross sections at superthermal collision energies
论文作者
论文摘要
与快速和热原子之间的碰撞相关的动力学和能量放松是逃生的基本兴趣，因此对于火星大气的演变也是如此。快速O（$^3p $）原子碰撞的总横截面与CO是根据量子机械计算计算得出的。在与行星科学和天体物理学相关的质量框架中，在碰撞能量从0.4到5 eV的碰撞能量计算横截面。 O（$^3 $ a'，$^3 $ a”和2 $^3 $ a“对称）的所有三个势能表面（$^3 $ a”） +与原子基态状态分开的CO碰撞已包含在跨区域的计算中。对所有三个同位素的横截面计算了与CO的Energetic O（$^3p $）原子碰撞。比较横截面的同位素依赖性。我们的新计算的有关O原子及其具有CO分子的同位素的能量松弛数据对于改善火星上层大气中的逃生和能量传递过程的建模非常有用。
The kinetics and energetic relaxation associated with collisions between fast and thermal atoms are of fundamental interest for escape and therefore also for the evolution of the Mars atmosphere. The total and differential cross-sections of fast O($^3P$) atom collisions with CO have been calculated from quantum mechanical calculations. The cross-sections are computed at collision energies from 0.4 to 5 eV in the center-of-mass frame relevant to the planetary science and astrophysics. All the three potential energy surfaces ($^3$A', $^3$A" and 2 $^3$A" symmetry) of O($^3P$) + CO collisions separating to the atomic ground state have been included in calculations of cross-sections. The cross-sections are computed for all three isotopes of energetic O($^3P$) atoms collisions with CO. The isotope dependence of the cross-sections are compared. Our newly calculated data on the energy relaxation of O atoms and their isotopes with CO molecules will be very useful to improve the modeling of escape and energy transfer processes in the Mars' upper atmosphere.
