Abstract
All four-point mixed gluon-graviton amplitudes in pure Einstein-Yang-Mills theory with at most one state of negative helicity are computed at one-loop order and maximal powers of the gauge coupling, using D-dimensional generalized unitarity. The resulting purely rational expressions take very compact forms. We comment on the color-kinematics duality and a relation to collinear limits of pure gluon amplitudes.
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Nandan, D., Plefka, J. & Travaglini, G. All rational one-loop Einstein-Yang-Mills amplitudes at four points. J. High Energ. Phys. 2018, 11 (2018). https://doi.org/10.1007/JHEP09(2018)011
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DOI: https://doi.org/10.1007/JHEP09(2018)011