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Published in 2021 at "Radiation Physics and Chemistry"
DOI: 10.1016/j.radphyschem.2020.109140
Abstract: Abstract We report the rotational excitation of O2 molecule by positron impact for energies between 0.01 and 5.0 eV. The T-matrices were obtained by the method of continued fractions within the positron correlation-polarisation potential considering different…
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Keywords:
rotational excitation;
positron;
polarisation potential;
positron impact ... See more keywords
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Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.203401
Abstract: Using classical arguments Wannier [Phys. Rev. 90, 817 (1953)PHRVAO0031-899X10.1103/PhysRev.90.817] proposed an electron-impact ionization cross section for neutral atoms to behave as E^{1.127}, where E is the excess energy above threshold. Using similar arguments Klar [J.…
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Keywords:
impact;
near threshold;
cross;
positron impact ... See more keywords