He-N_(2)碰撞转动激发截面的量子力学计算

Quantum-mechanical Calculation of Rotational-excitiation Cross Section for He-N_(2)

计算了氦原子和氮分子的态 -态转动激发截面 (E =70 .4meV) ,讨论了态 -态转动激发截面的规律。计算中采用精确度较高的密耦 (Close Coupling)近似方法和势能表面 (ESMSV) ,给出了总散射截面、弹性散射截面以及非弹性散射截面的角分布 ,计算结果与L .Beneventi等的实验结果相符。

State state rotational excitation cross sections have been calculated for collision between helium atom and nitrogen molecule at collision energy of 70.4meV in this paper.The law of state state rotational excitation cross sections has been discussed.The exact close coupling approximation method and the potential surface (ESMSV) were employed in the scattering calculation.The angular distrbutions of the total,elastic and inelastic cross sections were presented.The result of calculation is correspond to that opf the experiment by L.Beneventi et al.