Polarization of Lyman-α and Balmer-α emission in proton-hydrogen collisions: A study using first-order Born-Faddeev-type equations

R Fathi, Mohammad Bolorizadeh, F Akbarabadi, Michael Brunger

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    6 Citations (Scopus)

    Abstract

    A three-body Born-Faddeev model is devised to calculate the total cross sections of Balmer-α and Lyman-α emissions, for the excitation of hydrogen atoms by proton impact in the energy range of 100keV-7 MeV. In addition, the polarization alignment factor A 20is calculated and compared against available experimental data to further test the theory. Specifically, here we use the Faddeev-Watson-Lovelace formalism to study the excitation of atomic hydrogen from its ground state to the excited states of n = 2 and 3 and magnetic sublevels l = 0, 1 and 2, wherever applicable. The first-order electronic, A (1) e, and the first-order nuclear, A (1) n, amplitudes are considered in order to calculate the excitation transition matrix (T PT), while a near-the-shell condition is assumed throughout. In addition, our results were used to calculate the first-order form factors. The present results are compared, where possible, with those of other theoretical and experimental works that are currently available in the literature.

    Original languageEnglish
    Article number205201
    Pages (from-to)205201-1-205201-6
    Number of pages6
    JournalJournal of Physics B-Atomic Molecular and Optical Physics
    Volume45
    Issue number20
    DOIs
    Publication statusPublished - 28 Oct 2012

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