Strong coupling in massive gravity by direct calculation

Details Strong coupling in massive gravity by direct calculation Strong coupling in massive gravity by direct calculation

2003-12-19

arxiv.org/abs/hep-th/0312246v2

Phys.Rev. D69 (2004) 087502

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, 3 figures, some clarifications added

Scientific paper

10.1103/PhysRevD.69.087502

We consider four-dimensional massive gravity with the Fierz-Pauli mass term. The analysis of the scalar sector has revealed recently that this theory becomes strongly coupled above the energy scale \Lambda = (M_{Pl}^2 m^4)^{1/5} where m is the mass of the graviton. We confirm this scale by explicit calculations of the four-graviton scattering amplitude and of the loop correction to the interaction between conserved sources.

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