Joan Quirant - Massive spin-2 particles and the Swampland

In this talk, we will study swampland constraints on massive spin-2 particles coupled to gravity. We will start by considering an effective theory (EFT) with a single (interacting) massive spin-2 particle and a gap to the cutoff. We will show that this theory can never be made consistent with the so-called Classical Regge Growth conjecture (CRG), therefore being in the swampland. We will then move to the case in which there are several massive spin-2 particles in the EFT. We will see that the CRG demands an infinite tower, bounding the gaps between the masses of the different massive spin-2 particles.

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it is amazing that there are still people paid to live with this crap.