KLT-type relations for QCD and bicolor amplitudes from color-factor symmetry
KLT-type relations for QCD and bicolor amplitudes from color-factor symmetry
A bstract Color-factor symmetry is used to derive a KLT-type relation for tree-level QCD amplitudes containing gluons and an arbitrary number of massive or massless quark-antiquark pairs, generalizing the expression for Yang-Mills amplitudes originally postulated by Bern, De Freitas, and Wong. An explicit expression is given for all amplitudes with …