Speaker
Description
The Wigner distributions in boost-invariant longitudinal space for gluons in a proton are presented using the light-front gluon spectator model inspired by AdS/QCD. The boost-invariant longitudinal space defined by the coordinate $\sigma=\frac{1}{2}b^- P^+$, can be accessed through the Fourier transformation over skewness $\xi$ to the gluon-gluon general transverse momentum dependent distributions (GTMDs). The Skewness dependency for the leading twist GTMDs is extensively investigated for the unpolarized, longitudinally polarized and transversely polarized protons. The model results for gluon WDs in $\sigma$-space show an oscillatory behavior analogous to the diffraction scattering of a wave in optics and the total energy transfer to the electron-proton scattering $-t$ behaves equivalent to an effective slit-width.