**Journal Club: Experiment & Phenomenology-google meet**

Nucleon's energy-momentum tensor or gravitational form factors in QCD

Kazem Azizi, UT & IPM

21 JUN 2021

11:00 - 12:00

Based on

https://link.springer.com/content/pdf/10.1140/epjc/s10052-020-7676-5.pdf

Abstract: The energy-momentum tensor or gravitational form factors of nucleons are calculated in light cone QCD. The obtained results are compared with the results of lattice QCD and (existing) data provided by JLAB. As a by-product, some mechanical properties of the nucleon like the pressure and energy density at the center of nucleon as well as its mechanical radius are also calculated and their results are compared with other existing theoretical predictions. We compare the mass or gravitational radius of nucleon with its charge radius, which leads to a puzzle!!!!.

https://meet.google.com/anh-ditu-htd