A light front quark-diquark model for the nucleons

Abstract

We present a quark-diquark model for the nucleons where the light front wave functions are constructed from the soft-wall AdS/QCD prediction. The model is consistent with quark counting rule and Drell-Yan-West relation. The model reproduces the scale evolution of unpolarized PDF of proton for a wide range of energy scale. Helicity and transversity distributions for the proton predicted in this model agree with phenomenological fits. The axial and tensor charges are also shown to agree with the experimental data. The model can be used to evaluate distributions like GPDS, TMDs etc. and their scale evolutions.

30 pages, 14 figures

References in corpus (18)

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• Gravitational form factors and transverse spin sum rule in a light front quark-diquark model in AdS/QCD
• Nucleon structure in a light-front quark model consistent with quark counting rules and data
• Comparative analysis of the transversities and the longitudinally polarized distribution functions of the nucleon
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Cited by in corpus (5)

• Analysis of nucleon electromagnetic form factors from light-front holographic QCD : The spacelike region
• Structure of the nucleon at leading and subleading twist in the covariant parton model
• Gravitational form factors and angular momentum densities in light-front quark-diquark model
• Sivers and $\cos 2\varphi$ Asymmetries in Semi-inclusive Deep Inelastic Scattering in Light-front Holographic Model
• Model predictions for azimuthal spin asymmetries for HERMES and COMPASS kinematics