CMU Theory Seminar: Francesco Calisto

Speaker: Francesco Calisto Title: The Equivalence Principle at High Energies Completes the Spectrum Abstract: We show that tree-level gravitational scattering requires the existence of single particle states in all irreducible representations of the symmetry group of the theory from a single seed charge. The main assumption in play is that the leading high-energy behaviour is universal irrespective of charge, thus satisfying the equivalence principle. Furthermore, we see that the newly-deduced states contribute with equal interaction strengths to scattering. https://cmu.zoom.us/j/96413808449?pwd=NmEHWdSJS2tvUHhuPDOUwbPNcbcRH7.1 Meeting ID: 964 1380 8449 Passcode: 575261