Chiral-odd generalized parton distributions of sea quarks at $\xi=0$ in the light-cone quark model

TL;DR

This paper investigates the chiral-odd generalized parton distributions of sea quarks in the proton at zero skewness using a light-cone quark model, providing numerical results and exploring spin-orbit correlations.

Contribution

It introduces a novel calculation of chiral-odd GPDs of sea quarks using the baryon-meson fluctuation model within the light-cone formalism.

Findings

Numerical GPDs in momentum and impact parameter space are presented.

Impact parameter space analysis reveals spin-orbit correlation effects of sea quarks.

Expressions for specific chiral-odd GPDs are derived and analyzed.

Abstract

We study the chiral-odd generalized parton distributions (GPDs) of the $\bar{u}$ and $\bar{d}$ quarks inside the proton at zero skewness using the overlap representation within the light cone formalism. Using the light cone wave functions (LCWFs) of the proton obtained from the baryon-meson fluctuation model in terms of the $|q\bar{q}B\rangle$ Fock states, we provide the expressions of the GPDs $\widetilde{H}^{\bar{q}/P}_T(x,0,t)$, $H_T^{\bar{q}/P}(x,0,t)$ and $E_T^{\bar{q}/P}(x,0,t)$ for $\bar{q}=\bar{u}$ and $\bar{d}$. Numerical results for these GPDs in momentum space as well as in impact parameter space are presented. We further investigate certain combinations of the chiral-odd GPDs in impact parameter space to the spin-orbit correlation effect of the sea quarks.