计算中高能区电子与多原子分子散射总截面的经验公式  

The semiemprical formula of electron scattering from poly-atomic molecules for total cross sections at intermediate and high energy

作　　者：王如梅[1] 王玲[1] 

机构地区：[1]郑州轻工业学院技术物理系,河南郑州450002

出　　处：《郑州轻工业学院学报（自然科学版）》2004年第2期62-65,共4页Journal of Zhengzhou University of Light Industry:Natural Science

摘　　要：根据相关文献中实验测得的一些分子总截面与分子极化率的定量关系,利用分子的平均键长和极化率等参数拟合了一种计算中高能区电子与多原子分子散射总截面的经验公式,并对e-CH3Cl,e-CH2Cl2,e-CH3I和e-O3散射的总截面进行了计算,结果与文献中的实验结果较为吻合.The relations between the total cross section and molecular polarization of the molecule polarization have been proved by the experiment and can be searched in theory.From the experimental result and the Born approximation for scattering on a screened coulomb potential,we describe the relations by a semiemprical formula,which may help to estimate the total cross sections of election scattering by molecules such as e-CH_3Cl,e-CH_2Cl_2,e-CH_3I and e-O_3.It has a relationship with the molecular polarization and the number of electrons in the molecule.The formula can be used widely and it yields better result compared with the experimental in the intermediate and high-energy region.

关 键 词：电子 多原子分子 散射总截面 中高能区 经验公式 分子极化率 计算方法 量子力学 

分 类 号：O413.1[理学—理论物理]