Title : ( The 3D structure of the nucleons in perspective of the GPDs )
Authors: niloofar arami , Seyyedeh Fatemeh Taghavi shahri , Zahra Alizadeh Yazdi , SAMIRA SHOEIBI MOHSENABADI , Firooz Arash ,Abstract
In this article, we present our QCD analysis of the Nucleon Form Factors presented by JLab to extract a new parameterization for the valence Generalized Parton Distributions, $H_{v}^{q}(x, \\\\\\\\xi=0, t)$ and $E_{v}^{q}(x, \\\\\\\\xi=0, t)$. We choose simple parameterizations for $x-$ and $t-$ dependence of GPDs at zero skewness. These free parameters of the model are then obtained using old and new data of nucleon\\\\\\\'s elastic electromagnetic form factors from JLAB. We have also used the \\\\\\\"Hessian method\\\\\\\" to perform a careful estimation of the uncertainties for the nucleon GPDs and corresponding observables originate from experimental errors. We also calculate the parton distribution functions in Impact parameter space to show the 3-D structure of the Nucleon. We also calculated the proton and the neutron charge densities $\\\\\\\\rho_{ch}^{(p,n)}$. We show that there is a highly localized negative charge near the center of the neutron and it is because of the negatively charged down quarks dominating the high momentum quarks in the neutron. Finally. using the obtained Dirac\\\\\\\'s form factor, we had an estimation for the proton charge radius. The predictions based on the obtained nucleon GPDs are in good agreement with all available experimental data and other phenomenological models.
Keywords
Nucleon structuregeneralized parton distributions (GPDs)form factors@article{paperid:1099772,
author = {Arami, Niloofar and Taghavi Shahri, Seyyedeh Fatemeh and Alizadeh Yazdi, Zahra and SHOEIBI MOHSENABADI, SAMIRA and فیروز آرش},
title = {The 3D structure of the nucleons in perspective of the GPDs},
journal = {International Journal of Modern Physics A},
year = {2024},
volume = {39},
month = {June},
issn = {0217-751X},
keywords = {Nucleon structuregeneralized parton distributions (GPDs)form factors},
}
%0 Journal Article
%T The 3D structure of the nucleons in perspective of the GPDs
%A Arami, Niloofar
%A Taghavi Shahri, Seyyedeh Fatemeh
%A Alizadeh Yazdi, Zahra
%A SHOEIBI MOHSENABADI, SAMIRA
%A فیروز آرش
%J International Journal of Modern Physics A
%@ 0217-751X
%D 2024