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Double Copy from the Flipped Null String

Bagchi, Arjun et al.
arXiv (All) · Papers
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high-energy-physics-theory
We study the double-copy structure of tree amplitudes of the bosonic null string in the flipped vacuum. We show that its level-one vector correlator supplies the Cachazo-He-Yuan (CHY) kinematic half-integrand of the higher-derivative $(DF)^2$ gauge theory, while distinguished compact momentum-windin
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