Abstract
We investigate tree-level five-point amplitudes in scalar-QCD expressed in terms of Sudakov variables and find the equivalent “gravitational” counterparts using the color-kinematics duality proposed by Bern, Carrasco, and Johansson. Taking the multi-Regge limit in the gravitational amplitudes, we show that those pieces in the coupling of two reggeized gravitons to one on-shell graviton directly stemming from the double copy of the vertex for two reggeized gluons to one on-shell gluon are universal and properly reproduced by the duality.
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ArXiv ePrint: 1212.5103
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Vera, A.S., Campillo, E.S. & Vázquez-Mozo, M.Á. Color-kinematics duality and the Regge limit of inelastic amplitudes. J. High Energ. Phys. 2013, 86 (2013). https://doi.org/10.1007/JHEP04(2013)086
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DOI: https://doi.org/10.1007/JHEP04(2013)086