Models of parton distributions and the description of form factors of nucleon

Abstract

The comparative analysis of different sets of the parton distribution functions (PDFs), based on the description of the whole sets of experimental data of electromagnetic form factors of the proton and neutron, is made in the framework of the model of t-dependence of the generalized parton distributions (GPDs) with minimum free parameters and some extending variants of the model. In some cases, a large difference in the description of electromagnetic form factors of nucleons with using the different sets of PDF are found out. The different variants of the flavor dependence of the up and down quark form factors are presented and discussed. The gravitation form factors, obtained with the different sets of PDF, are also calculated and the anomalous gravimagnetic moment is compared with the Equivalence Principle. The calculations of the differential cross sections of the real Compton scattering are presented.

14 pages; 15 figures; (corrected some misprints in text and references)

References in corpus (13)

• Parton distributions for the LHC
• Extraction of Spin-Dependent Parton Densities and Their Uncertainties
• Global analysis of proton elastic form factor data with two-photon exchange corrections
• Dynamical parton distributions of the nucleon and very small-x physics
• Nucleon form-factors of the energy momentum tensor in the chiral quark-soliton model
• Flavor decomposition of the elastic nucleon electromagnetic form factors
• Measurements of the Electric Form Factor of the Neutron up to Q2=3.4 GeV2 using the Reaction He3(e,e'n)pp
• Measurement of the proton electric to magnetic form factor ratio from \vec ^1H(\vec e, e'p)
• Proton G_E/G_M from beam-target asymmetry
• Generalized Parton Distributions and Description of Electromagnetic and Graviton form factors of nucleon
• The structure function method applied to polarized and unpolarized electron-proton scattering: a solution of the G_E(p)/G_M(p) discrepancy
• Compton Scattering Cross Section on the Proton at High Momentum Transfer
• Equivalence Principle and Partition of Angular Momenta in the Nucleon

Cited by in corpus (8)

• Possible studies at the first stage of the NICA collider operation with polarized and unpolarized proton and deuteron beams
• Impact of JLab data on the determination of GPDs at zero skewness and new insights from transition form factors $N\to \Delta$
• Anomaly in the differential cross sections at 13 TeV
• Form factors of the nucleon by using the t dependence of parton distribution functions
• Electromagnetic and gravitomagnetic structure and radii of nucleons
• Nucleon Form Factors from GPDs
• GPDs of hadrons and elastic pion-nucleon scattering
• Nucleon structure and spin effects in elastic hadron scattering