  Combining the Berends-Giele and on-shell recursion relations we obtain an
extremely compact expression for the scattering amplitude of a complex
scalar-antiscalar pair and an arbitrary number of positive helicity gluons.
This is one of the basic building blocks for constructing other helicity
configurations from recursion relations. We also show explicity that the all
positive helicity gluons amplitude for heavy fermions is proportional to the
scalar one, confirming in this way the recently advocated SUSY-like Ward
identities relating both amplitudes.
