New representation of the two-loop crossed vertex function

Details New representation of the two-loop crossed vertex function New representation of the two-loop crossed vertex function

1996-10-08

arxiv.org/abs/hep-ph/9610285v2

Nucl.Phys. B488 (1997) 426-440

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, latex, uses epsfig, amstex, amssymb. Replacement has typo corrected, references updated

Scientific paper

10.1016/S0550-3213(97)00026-6

We calculate the two-loop vertex function for the crossed topology, and for
arbitrary masses and external momenta. We derive a double integral
representation, suitable for a numerical evaluation by a Gaussian quadrature.
Real and imaginary parts of the diagram can be calculated separately.

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