Gravitational form factors and mechanical properties of the proton: Connections between distributions in 2D and 3D

Abstract

The gravitational form factors which are obtained from the matrix elements of the energy-momentum tensor provide us information about internal distributions of mass, energy, pressure, and shear. The Druck term is the least understood among all the gravitational form factors. In a light front quark-diquark model of a proton, we investigate the Druck form factor. Using Abel transformation, we evaluate the 3D distribution in the Breit frame from the 2D light front distributions. The results are compared with other models and lattice predictions.