Triple-differential cross sections in three-dimensional kinematics for electron-impact-ionization dynamics of tetrahydrofuran at 250-eV projectile energy

We report a combined experimental and theoretical study of the ionization dynamics tetrahydrofuran induced by 250 eV electron impact in which highest occupied molecular orbital is ionized leading to stable parent ion. Experimentally reaction microscope was used, covering nearly entire $4\ensuremath{\pi}$ solid angle for ejected slow electron. present triple-differential cross sections projectile scattering angles ${\ensuremath{\theta}}_{1}$ = $\ensuremath{-}{10}^{\ensuremath{\circ}}$ as function emission electrons with energies ${E}_{2}=10$, 15, 20 eV, i.e., asymmetric energy sharing between scattered electrons. The measured are internormalized across three energies. data compared predictions from three-body distorted-wave (M3DW), multicenter (MCDW) approaches, modified MCDW-WM method includes postcollision interaction using Ward-Macek approximation. Generally, M3DW show better agreement experiment than MCDW calculations except near forward direction. do not reproduce recoil lobes very small intensity outside plane.