KLT-type relations for QCD and bicolor amplitudes from color-factor symmetry

19 Feb 2018 Brown Robert W. Naculich Stephen G.

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 two or fewer quark-antiquark pairs in terms of the (modified) momentum kernel... (read more)

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  • HIGH ENERGY PHYSICS - THEORY
  • HIGH ENERGY PHYSICS - PHENOMENOLOGY