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Color-Kinematics Duality in Multi-Regge Kinematics and Dimensional Reduction

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arxiv 1307.3106 v2 pith:AYO525N6 submitted 2013-07-11 hep-th gr-qc

Henrik Johansson , Agustin Sabio Vera , Eduardo Serna Campillo , Miguel A. Vazquez-Mozo This is my paper · ORCID
classification hep-thgr-qc
keywords color-kinematicsdimensionaldualityemissionextensionsgaugegravitationalkinematics
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In this note we study the applicability of the color-kinematics duality to the scattering of two distinguishable scalar matter particles with gluon emission in QCD, or graviton emission in Einstein gravity. Previous analysis suggested that direct use of the Bern-Carrasco-Johansson double-copy prescription to matter amplitudes does not reproduce the gravitational amplitude in multi-Regge kinematics. This situation, however, can be avoided by extensions to the gauge theory, while maintaning the same Regge limit. Here we present two examples of these extensions: the introduction of a scalar contact interaction and the relaxation of the distinguishability of the scalars. In both cases new diagrams allow for a full reconstruction of the correct Regge limit on the gravitational side. Both modifications correspond to theories obtained by dimensional reduction from higher-dimensional gauge theories.

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Cited by 2 Pith papers

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  2. QCD-Gravity double copy in Regge asymptotics: from $2\rightarrow n$ amplitudes to radiation in shockwave collisions

    hep-th 2025-07 accept novelty 3.0 of 10

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