Speaker
Callum Jones
Description
In this talk I will describe the construction of supersymmetrizations of a special class of models with massive spin-2 "gravitons" in d=4. Using various pieces of on-shell technology, including massive on-shell superspace and the double-copy, I will argue that there exists a unique "simplest" model of massive gravity with N=4 supersymmetry and maximal R-symmetry. This model has no free parameters in the dRGT potential and yet is (possibly uniquely) consistent with known UV constraints from superluminality, analyticity and unitarity. I will also describe the prospect of constructing this model as a double-copy of N=2 supersymmetric massive Yang-Mills and the various difficulties associated with a massive double-copy.
