Dark Energy, the Scale of SUSY breaking and the Swampland

by Dr Marco Scalisi (Munich, Max Planck Inst.)

Wednesday 19 Apr 2023, 11:30 → 12:30 Europe/Zurich

4/2-011 - TH common room (CERN)

We argue for a relation between the measured value of the dark energy density Λ and the supersymmetry breaking scale. We derive it by combining two quantum gravity consistency swampland constraints, which tie the dark energy density and the gravitino mass, respectively, to the mass scale of a light Kaluza-Klein tower and, therefore, to the UV cut-off of the effective theory. We find that a natural scale for supersymmetry signatures is M=O(Λ^1/8)=O(TeV). This mass scale is within reach of LHC and of the next generation of hadron colliders. Finally, we discuss possible string theory and effective supergravity realizations of this scenario.