3 papers
hep-th2026
A unique coupling of the massive spin-2 field to supergravity
Guillaume Bossard, Gabriele Casagrande, Emilian Dudas +1
We show that the coupling of a massive spin-2 field to undeformed N=1 supergravity in four dimensions is unique, leading to a specific non-minimal coupling to the Riemann tensor. T…
hep-th2025
Bounds on the next-to-leading Wilson coefficient in maximal supergravity
Guillaume Bossard, Adrien Loty
One expects type II string theory to be the unique ultraviolet completion of maximal supergravity. Motivated by the recent computation of the unitary bound on the leading Wilson co…
hep-th2025
Saturating unitarity bounds at U-duality symmetric points
Guillaume Bossard, Adrien Loty
It has recently been shown that the leading Wilson coefficient in type II string theory can take (almost) all values allowed by unitarity, crossing symmetry and maximal supersymmet…