Chiral Odd Generalized Parton Distributions and Spin Densities in the Impact Parameter Space

TL;DR

This paper investigates chiral odd generalized parton distributions in impact parameter space using a quark-diquark model, analyzing spin densities for up and down quarks with various diquark configurations and polarization states.

Contribution

It introduces a flexible parametrization of chiral odd GPDs within a quark-diquark framework, including detailed spin density analyses for different quark and proton polarization states.

Findings

Explicit up and down quark contributions to GPDs are calculated.

Spin densities exhibit monopole, dipole, and quadrupole structures.

Results provide insights into the spin structure of the proton.

Abstract

In the present work we have studied the chiral odd Generalized Parton Distributions (GPDs) in the impact parameter space by assuming a flexible parametrization in a quark-diquark model. In order to obtain the explicit contributions from the up and down quarks, we have considered both the scalar (spin-0) and the axial-vector (spin-1) configurations for the diquark. We have also studied the spin densities for the up and down quarks in this model for monopole, dipole and quadrupole contributions for unpolarized and polarized quarks in unpolarized and polarized proton.