Solving the Bethe–Salpeter equation for a pseudoscalar meson in Minkowski space

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Abstract:

A new method of the solution of the Bethe–Salpeter equation for a pseudoscalar quark–antiquark bound state is proposed. With the help of an integral representation, the results are directly obtained in Minkowski space. Dressing of Green's functions is naturally taken into account, thus providing the possible inclusion of a running coupling constant as well as quark propagators. First numerical results are presented for a simplified ladder approximation.

Document Type: Research Article

DOI: http://dx.doi.org/10.1088/0954-3899/35/3/035005

Publication date: March 1, 2008

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