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arxiv: 1607.05701 · v2 · pith:FYMTWABGnew · submitted 2016-07-19 · ✦ hep-th

Einstein-Yang-Mills from pure Yang-Mills amplitudes

Dhritiman Nandan , Jan Plefka , Oliver Schlotterer , Congkao Wen This is my paper
classification ✦ hep-th
keywords amplitudescoloreinstein-yang-millsgeneralizegravitonspureresultssingle
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We present new relations for scattering amplitudes of color ordered gluons and gravitons in Einstein-Yang-Mills theory. Tree-level amplitudes of arbitrary multiplicities and polarizations involving up to three gravitons and up to two color traces are reduced to partial amplitudes of pure Yang-Mills theory. In fact, the double-trace identities apply to Einstein-Yang-Mills extended by a dilaton and a B-field. Our results generalize recent work of Stieberger and Taylor for the single graviton case with a single color trace. As the derivation is made in the dimension-agnostic Cachazo-He-Yuan formalism, our results are valid for external bosons in any number of spacetime dimensions. Moreover, they generalize to the superamplitudes in theories with 16 supercharges.

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