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arXiv · 2202.10499

Scattering Amplitudes and The Cotton Double Copy

William T. Emond·Nathan Moynihan
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Abstract

We construct classical curvature spinors in topologically massive gauge theory and topologically massive gravity, expressed in terms of massive three-particle amplitudes. We show that when the amplitudes double copy, the curvature spinors satisfy the Cotton double copy, the three-dimensional cousin of the Weyl double copy. Furthermore, we show that under certain circumstances the Cotton double copy can be derived via a dimensional reduction of the Weyl double copy.

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William T. Emond, Nathan Moynihan. 2022-02-21. Scattering Amplitudes and The Cotton Double Copy. https://arxiv.org/abs/2202.10499

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