Angular momentum distribution for a quark dressed with a gluon: different decompositions

Abstract

We present a recent calculation of the quark and gluon contributions to the angular momentum of a composite spin -$1/2$ state in QCD. The state we consider is a quark dressed with a gluon, and we use the two-component framework in light-front Hamiltonian QCD. We compare the results from different decompositions available in the literature. We also present the angular momentum distributions.

Prepared for 31 st International Workshop on Deep Inelastic Scattering and Related Phenomena, Grenoble, France, April 8-12, 2024