Amplitudes and 4D Gauss-Bonnet theory

It has recently been argued that there may be a nontrivial four-dimensional limit of the higher-dimensional Gauss-Bonnet and Lovelock interactions and that this might provide a loophole allowing for new four-dimensional gravitational theories, possibly without a standard Lagrangian. We investigate t...

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Veröffentlicht in:	Physical review. D 2020-07, Vol.102 (2), p.1, Article 024029
Hauptverfasser:	Bonifacio, James, Hinterbichler, Kurt, Johnson, Laura A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplitudes Gravitation theory Gravitons Relativity Scattering Tensors Theory of relativity
Online-Zugang:	Volltext
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