New representation of the two-loop crossed vertex function

Preprint

8 October 1996

preprint
Published by arXiv in arXiv

Abstract

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.

Keywords

INTEGRAL REPRESENTATION
NEW REPRESENTATION
EXTERNAL MOMENTA
VERTEX FUNCTION
REPRESENTATION
CROSSED VERTEX
LOOP CROSSED
TWO LOOP
TOPOLOGY

All Related Versions

Version 1, 1996-10-08, ArXiv
Version 2, 1996-10-09, ArXiv
Published version: Nuclear Physics B, 488 (1-2), 426.

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