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Bethe-Salpeter equation in Minkowski space with cross-ladder kernel

V. A. Karmanov·J. Carbonell
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Abstract

A new method for solving the Bethe-Salpeter equation is developed. It allows to find the Bethe-Salpeter amplitudes both in Minkowski and in Euclidean spaces and, as a by product, the light-front wave function. The method is valid for any kernel given by irreducible Feynman graphs. Bethe-Salpeter and Light-Front equations for scalar particles with ladder + cross-ladder kernel are solved.

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V. A. Karmanov, J. Carbonell. 2005-10-17. Bethe-Salpeter equation in Minkowski space with cross-ladder kernel. https://doi.org/10.1016/j.nuclphysbps.2006.08.068

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