Speaker
Peter Lowdon
Description
In this talk I will discuss the constraints imposed by Poincaré symmetry on the form factors appearing in the Lorentz decomposition of the energy-momentum tensor matrix elements. By adopting a distributional approach, one can prove non-perturbatively that the zero momentum-transfer limits of the leading two form factors are completely independent of the properties of the states in the matrix elements. I will briefly outline some of the consequences of this state universality.
Author
Peter Lowdon
Co-authors
sabrina cotogno
(Nikhef)
Cédric Lorcé
(Ecole polytechnique)
