Work

Supersymmetric Massive Gravity

Year: 2022

Type: article

Abstract: We initiate a systematic study of the self-interactions of a massive spin-2 “graviton” consistent with up to $$ \mathcal{N} $$ N = 4 supersymmetry. Using a recently developed massive on-shell superspace formalism, we construct the most general set of cubic massive graviton amplitudes in a form with all supersymmetry and Lorentz invariance manifest. We find that for $$ \mathcal{N} $$ N ≥3 supersymmetry, the family of consistent interactions coincide with those of the ghost-free dRGT model. For $$ \mathcal{N} $$ N = 4 (maximal) supersymmetry there is a single consistent cubic interaction which coincides with the unique structure required for the absence of asymptotic superluminality. Additionally, we discuss the structure of interactions in the high-energy limit, connections to supersymmetric Galileons and the possibility of a supersymmetric massive double copy.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep10(2022)130

Authors: Laura Engelbrecht, Callum R. T. Jones, Shruti Paranjape

Institutions: ETH Zurich, Institute for Theoretical Physics, University of California, Los Angeles, University of California, Davis

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: U.S. Department of Energy, University of Michigan, University of California, Davis

Award: HIGH ENERGY PARTICLE PHYSICS RESEARCH