22-26 July 2019
Ecole Nationale Supérieure de Chimie
Europe/Paris timezone

Poincaré constraints on the gravitational form factors for massive states with arbitrary spin

22 Jul 2019, 19:30
Amphi Friedel (Ecole Nationale Supérieure de Chimie)

Amphi Friedel

Ecole Nationale Supérieure de Chimie

11 Rue Pierre et Marie Curie, 75005 Paris
Poster Physics Poster session


Peter Lowdon (Ecole Polytechnique)


In this talk I will discuss the constraints imposed by Poincaré symmetry on the gravitational 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 spin of the states in the matrix elements. Expressing these form factors in terms of generalised parton distributions, this implies that the corresponding linear and angular momentum sum rules are in fact spin-universal.

Primary author

Peter Lowdon (Ecole Polytechnique)

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