AuxiliaryMomenta
is an option of FCLoopPropagatorsToLineMomenta
, FCLoopIntegralToGraph
and other functions. It specifies auxiliary momenta that do not correspond to external legs, i.e. don’t really flow through the lines, e.g. and in SCET or in HQET.
Overview, FCLoopPropagatorsToLineMomenta, FCLoopIntegralToGraph.