Threshold behavior of Feynman diagrams: the master two-loop propagator

Details Threshold behavior of Feynman diagrams: the master two-loop propagator Threshold behavior of Feynman diagrams: the master two-loop propagator

1996-08-22

arxiv.org/abs/hep-ph/9608407v2

Phys.Lett. B394 (1997) 211-217

Physics

High Energy Physics

High Energy Physics - Phenomenology

Minor additions; to appear in Physics Letters B

Scientific paper

10.1016/S0370-2693(96)01698-X

An asymptotic expansion of the two-loop two-point ``master'' diagram with two
masses $m$ and $M$, on the mass shell $Q^2=M^2$, is presented. The treatment of
the non-analytical terms arising in the expansion around the branching point is
discussed. Some details of the calculation of a new class of two-loop integrals
are given.

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