Elastic scattering of electrons by atomic hydrogen at intermediate energies

Scattering of e ± by H-isonuclear series

“…So we only present our results in Figures 3(a), (d), and (f) for future reference. Our OPM results show better agreement with the experimental data of Williams [19] than the second Born computational method of Das and Biswas [26] and ls-2p pseudo-state approximations of Fon et al [66] at E i = 20 eV in Figure 3(b). Present results also fit well with the measured data of Lloyd et al [18] and Williams [19] at E i = 30 eV in Figure 3(c), where the complicated ls-2p pseudo-state approximations of Burke et al [20] shows a little disagreement at lower angular regions with both of the experimental data.…”

“…We first present our OPM predictions of DCS for elastically scattered e − from hydrogen atom over the energy range 10 eV E i 1 MeV and angular region 0° θ 180°i n figures 3-5 and later discuss the same for the positron impact in figures 6-7. For electron scattering, we compare our results with experimental data of [17][18][19] and theoretical results of [20,21,23,24,26,29,66] for demonstrating the effectiveness of our model. Figures 3(a)-(f) represent DCS at E i = 10, 20, 30, 40, 50, and 60 eV for e − − H scattering system.…”

“…At E i = 50 eV, figure 3(e), our results show good agreement with experimental data of [17][18][19] with little underestimation at middle angular regions. Here are also included the results of Byron and Joachain [24], Khare and Lata [29], Das and Biswas [26], and Fon et al [66]. The later calculations were more complicated and used different interaction potentials and procedural steps.…”

Hyperspherical partial-wave theory applied to electron–hydrogen-atom ionization calculation for equal-energy-sharing kinematics

“…For other energies, however, we have nearly the correct SDCS values for equal energy sharing situations. Calculation on a larger scale with larger values of R 0 , and with more precise solution of the equations (17), may decide absolutely the normalization question of the measured results of Röder et al [48] for 15.6 eV energy. Cross section results for 15.6 eV energy have been included here for the sake of completeness.…”

“…However, they always obtained moderately good results. There are also attempts [17][18][19][20][21][22][23][24] to improve the calculations. Along these lines the most successful calculations are the convergent close coupling (CCC) calculations of Bray et al [25][26][27][28][29][30].…”