Abstract
Tree-level amplitudes of gauge theories are expressed in a basis of auxiliary amplitudes with only cubic vertices. The vertices in this formalism are explicitly factorized in color and kinematics, clarifying the color-kinematics duality in gauge theory amplitudes. The basis is constructed making use of the KK and BCJ relations, thereby showing precisely how these relations underlie the color-kinematics duality. We express gravity amplitudes in terms of a related basis of color-dressed gauge theory amplitudes, with basis coefficients which are permutation symmetric.
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ArXiv ePrint: 1203.0944
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Bjerrum-Bohr, N.E.J., Damgaard, P.H., Monteiro, R. et al. Algebras for amplitudes. J. High Energ. Phys. 2012, 61 (2012). https://doi.org/10.1007/JHEP06(2012)061
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DOI: https://doi.org/10.1007/JHEP06(2012)061