Leading twist GTMDs at nonzero skewness and Wigner distributions in boost-invariant longitudinal position space

We investigate the leading twist quark generalized transverse momentum distributions (GTMDs) at nonzero skewness in a light-front quark-diquark model for nucleon motivated by soft-wall AdS/QCD. The boost-invariant longitudinal coordinate, $\sigma=\frac{1}{2} b^- P^+$, is identified as Fourier conjugate of skewness. transform GTMDs with respect to variable $\xi$ can be employed provide Wigner position space $\sigma$, coordinate time, $\tau=t+z/c$. exhibit diffraction patterns, which are analogous diffractive scattering wave optics.