Effect of the pion field on the distributions of pressure and shear in the proton

Abstract

In light of recent experimental progress in determining the pressure and shear distributions in the proton, these quantities are calculated in a model with confined quarks supplemented by the pion field required by chiral symmetry. The incorporation of the pion contributions is shown to account for the long-range distributions, in general agreement with the experimentally extracted quark contributions. The results of the model are also compared with lattice QCD results at unphysically large quark mass.

5 pages, 4 figures

References in corpus (10)

• Nucleon form-factors of the energy momentum tensor in the chiral quark-soliton model
• Interplay of Spin and Orbital Angular Momentum in the Proton
• Gluon gravitational structure of hadrons of different spin
• Nucleon mass radii and distribution: Holographic QCD, Lattice QCD and GlueX data
• Gravitational form factors and mechanical properties of proton in a light-front quark-diquark model
• Energy momentum tensor and the D-term in the bag model
• Chiral theory of nucleons and pions in the presence of an external gravitational field
• Genuine empirical pressure within the proton
• Determination of shear forces inside the proton
• Determination of the Gluonic D-term and Mechanical Radii of Proton from Experimental data

Cited by in corpus (8)

• Gravitational form factors of the proton from lattice QCD
• 2D energy-momentum tensor distributions of nucleon in a large-$N_c$ quark model from ultra-relativistic to non-relativistic limit
• Dominance of gluonic scale anomaly in confining pressure inside nucleon and D-term
• A Journey of Seeking Pressure and Forces in the Nucleon
• Gravitational form factors of the nucleon in the Skyrme model based on scale-invariant chiral perturbation theory
• Spin-orbit correlation and spatial distributions for spin-0 hadrons
• Scale-anomaly-induced binding pressure in hadrons
• Visualization of internal forces inside the proton in a classical relativistic model