HET-Discovery seminar: Matin Mojaza

Speaker: Matin Mojaza

Title: Hidden Conformal Symmetry in Gravitational Scattering Amplitudes


I will argue that the scattering of gravitons in ordinary Einstein gravity possesses a hidden conformal symmetry at the tree level in any number of dimensions. I will show that this conformal symmetry follows from a simple physical argument when inspecting the scattering behavior of soft dilatons with gravitons in string theory, which I will discuss in some details. This hidden symmetry is reminiscent of the conformal invariance of gluon tree-level amplitudes in four dimensions and their similarities and differences will be discussed.