中国物理B ›› 2022, Vol. 31 ›› Issue (8): 83402-083402.doi: 10.1088/1674-1056/ac4482
Xiaoli Zhao(赵小利)1,† and Kedong Wang(王克栋)2,‡
Xiaoli Zhao(赵小利)1,† and Kedong Wang(王克栋)2,‡
摘要: We present elastic electron scattering cross sections with holmethane molecules CH2Br2 and CCl2Br2 in the low-energy region ranging from 0.01 eV to 20 eV. The calculations are performed with the R-matrix method in static-exchange plus polarization (SEP) and close-coupling (CC) approximations. The integral, differential, and momentum transfer cross sections are calculated. The convergence of the obtained cross sections is checked at four different levels of SEP approximation. The predicted positions of the resonances agree well with available results. The precise resonance parameters are found to be sensitive to the treatment of polarization effects employed. We find that the polarization has a substantial effect on the cross sections, and this effect becomes even more important for lower impact energies.
中图分类号: (Elastic scattering)