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hep-th2022★ 6 cited
Massive Color-Kinematics Duality and Double-Copy for Kaluza-Klein Scattering Amplitudes
Yao Li, Yan-Feng Hang, Hong-Jian He
We study the scattering amplitudes of massive Kaluza-Klein (KK) states under toroidal compactification. We present a shifting method to quantitatively derive the scattering amplitu…
hep-th2022★ 8 cited
Gravitational Equivalence Theorem and Double-Copy for Kaluza-Klein Graviton Scattering Amplitudes
Yan-Feng Hang, Hong-Jian He
We analyze the structure of scattering amplitudes of the Kaluza-Klein (KK) gravitons and of the KK gravitational Goldstone bosons in the compactified 5d General Relativity (GR). Us…