Schrödinger models for solutions of the Bethe-Salpeter equation in Minkowski space. II. Fermionic bound-state constituents

    Richard L. Hall1,* and Wolfgang Lucha2,†

    • 1Department of Mathematics and Statistics, Concordia University, 1455 de Maisonneuve Boulevard West, Montréal, Québec, Canada H3G 1M8
    • 2Institute for High Energy Physics, Austrian Academy of Sciences, Nikolsdorfergasse 18, A-1050 Vienna, Austria

    • *richard.hall@concordia.ca
    • wolfgang.lucha@oeaw.ac.at

    Phys. Rev. D 90, 065012 – Published 10 September, 2014

    DOI: https://doi.org/10.1103/PhysRevD.90.065012

    Abstract

    In view of the obstacles encountered in any attempts to solve the Minkowski-space Bethe-Salpeter equation for bound states of two fermions, we study the possibility to model the bound-state features, at least at a qualitative level, by a Schrödinger description. Such a nonrelativistic potential model can be constructed by applying, to any given Bethe-Salpeter spectral data, “geometric spectral inversion” in its recently extended form, which tolerates also singular potentials. This leads to the adaptation of explicit models that provide an overview accounting for the Bethe-Salpeter formalism’s complexities.

    See Also

    Schrödinger models for solutions of the Bethe–Salpeter equation in Minkowski space

    Richard L. Hall and Wolfgang Lucha
    Phys. Rev. D 85, 125006 (2012)

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