TRIPLE DIFFERENTIAL CROSS-SECTIONS FOR ELECTRON-IMPACT IONIZATION OF HE+ IN COPLANAR SYMMETRICAL GEOMETRY

Triple differential cross sections have been calculated for electron-i mpact ionization of He+ in an electron incident energy range 75-3000 e V at an angle of 45 degrees in a symmetric coplanar energy-sharing geo metry. In the present calculation the three Coulomb two-body interacti ons, the dynamic screening modification of these interactions due to t he presence of the third particle and the correlation in the final cha nnel, and the distortion of Coulomb force without the bound electron s creening effect in the initial channel have been studied. The results have been compared with the existing theoretical ones.