Abstract
Triple differential cross sections (TDCS) are estimated for the ionization of metastable 3d-state hydrogen atoms by electron at 250 eV for various kinematic conditions pursuing a multiple scattering theory. The present new results are compared with the theoretical results of hydrogenic different metastable states as well as the hydrogenic ground state experimental data. Obtained new finding results are in good qualitative agreement with those of compared theories. The present results give an immense opportunity for experimental trial in the field of ionization problems.
Highlights
The theoretical non-relativistic studies for the atomic ionization by fast particle were first treated by Bethe [1]
We have calculated in this work the triple differential cross-sections (TDCS) at high incident energy Ei = 250 eV for various ejected angles θ1 and fixed scattering angles θ2
Triple differential cross sections for ionization of metastable 3d-state hydrogen atoms by incident electron are presented at different energies
Summary
The theoretical non-relativistic studies for the atomic ionization by fast particle were first treated by Bethe [1]. The atomic hydrogen ionization by fast particle is a good form for perturbation theory due to the availability of experimental results. In this context, the electron-electron coincidence experiments called (e, 2e) experiments, provide a clear concept of the kinematics of the collisions by giving information about the direction of the scattered and ejected electrons. A multiple scattering theory [5] [15] has been applied in the present calculation of the triple differential cross sections (TDCS) in the metastable 3d-state hydrogen atom ionization by 250 eV electron energy. Current results are compared with previous related theories [18] [27] and [29]
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