Weakly coupled gravity beyond general relativity

We explore four-dimensional (4D) weakly coupled gravity beyond general relativity in an on-shell language, focusing on the graviton three-point vertex. This admits a novel structure which can be attributed to a term cubic in the Riemann tensor. We consider a generalization of the Shapiro time delay...

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Autores principales: Camanho, X.O., Edelstein, J.D., Zhiboedov, A.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02182718_v24_n12_p_Camanho
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