Jun 5 – 9, 2023
Genova, Italy
Europe/Rome timezone

The gluon distribution functions and angular momentum in the proton

Jun 8, 2023, 5:00 PM
DAD - Room 1B (Genova, Italy)

DAD - Room 1B

Genova, Italy

Contributed Exotic hadrons and candidates QCD and hadron structure


Chentao Tan


We study the leading twist gluon generalized parton distributions (GPDs) and the Wigner distributions of the gluons in the proton within a light-cone spectator model. The model provides an approach to generate the gluon degree of freedom from the proton target, in which the proton is regarded as a two-particle composite system composed of an active gluon ($g$) and a spectator particle ($uud$). We present the numerical results of $H^g$, $E^g$, $\tilde{H}^g$, $H_T^g$ and $E_T^g$ as functions of $x$ at different $\Delta_\perp$. The Wigner distributions $W_{UU}$, $W_{LU}$, $W_{UL}$ and $W_{LL}$ are also provided. Using the above results, we further investigate the total angular momentum, the orbit angular momentum and the spin-orbit correlations of gluons.

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