Abstract: | This paper has improved Hickman's nonadiabatic collision model by substituting Hickman's constant velocity classical straight line trajectory approximation with the solution of motion equation mR=?dV(R)/dR, and has calculated the cross sections of ion-pair formation Cs+O2→Cs++O?2 with the improved nonadiabatic collision model (INCM). A comparison of our results with other theoretical and experimental results has been made. |