31st International Workshop on Deep Inelastic Scattering

Angular momentum distribution for a quark dressed with a gluon

9 avr. 2024, 17:00

20m

Maison MINATEC, Grenoble, FRANCE

Regular parallel talk WG5: Spin and 3D Structure WG5

Orateur

Prof. Asmita Mukherjee (Indian Institute of Technology Bombay)

Description

We investigate the different decompositions of the angular momentum in QCD for a relativistic spin $1/2$ composite state, namely a quark dressed with a gluon. We use light-front Hamiltonian perturbation theory, and in the light-front gauge, use the two-component framework by eliminating the constrained degrees of freedom. We also investigate the different decompositions of the angular momentum at the level of two-dimensional densities in the front form, including the effect of the so-called potential term. In this work, we consider the contribution coming from the quark part of the energy-momentum tensor. We contrast the different decompositions and also compare them with other calculations in the literature. We also present the gravitational form factor related to the antisymmetric part of the energy-momentum tensor.

Documents de présentation

DIS2024.pdf