Effects of long-range forces on the D-term and the energy-momentum structure

Abstract

The hadronic form factors of the energy-momentum tensor (EMT) have attracted considerable interest in recent literature. This concerns especially the D-term form factor D(t) with its appealing interpretation in terms of internal forces. With their focus on hadron structure, theoretical studies so far have concentrated on strongly interacting systems with short-range forces. Effects on the EMT due to long-range forces like the electromagnetic interaction have not yet been studied. Electromagnetic forces play a small role in the balance of forces inside the proton, but their long-range nature introduces new features which are not present in systems with short-range forces. We use a simple but consistent classical field theoretical model of the proton to show how the presence of long-range forces alters some notions taken for granted in short-range systems. Our results imply that a more careful definition of the D-term is required when long-range forces are present.

References in corpus (29)

• Ab initio calculation of the neutron-proton mass difference
• Nucleon electromagnetic and gravitational form factors from holography
• Light-Front Dynamics and AdS/QCD Correspondence: Gravitational Form Factors of Composite Hadrons
• QED in finite volume and finite size scaling effect on electromagnetic properties of hadrons
• Nucleon form-factors of the energy momentum tensor in the chiral quark-soliton model
• Form Factors and Wave Functions of Vector Mesons in Holographic QCD
• Dispersion representations for hard exclusive processes
• The nucleon form-factors of the energy momentum tensor in the Skyrme model
• Dispersion relations and subtractions in hard exclusive processes
• Dispersive evaluation of the D-term form factor in deeply virtual Compton scattering
• Nucleon spin densities in a light-front constituent quark model
• The pion mass dependence of the nucleon form-factors of the energy momentum tensor in the chiral quark-soliton model
• Implication of the overlap representation for modelling generalized parton distributions
• Gravitational Form Factors in the Axial Sector from an AdS/QCD Model
• Energy momentum tensor and the D-term in the bag model
• D-term and structure of point-like and composed spin-0 particles
• Gravitational form factors within light-cone sum rules at leading order
• On the D-term of the nucleon generalized parton distributions
• Radial excitations of Q-balls, and their D-term
• Gravitational form factors and transverse spin sum rule in a light front quark-diquark model in AdS/QCD
• Energy momentum tensor, stability, and the D-term of Q-balls
• Leading Chiral Corrections to the Nucleon Generalized Parton Distributions
• Rigorous constraints on the matrix elements of the energy-momentum tensor
• Deeply Virtual Compton Scattering on a Photon and Generalized Parton Distributions in the Photon
• Gravitational form factors and angular momentum densities in light-front quark-diquark model
• Analyticity and sum rules for photon GPDs
• Monopole and quadrupole contributions to the angular momentum density
• Deuteron transverse densities in holographic QCD
• D-term, strong forces in the nucleon, and their applications

Cited by in corpus (9)

• Forces inside a strongly-coupled scalar nucleon
• Dominance of gluonic scale anomaly in confining pressure inside nucleon and D-term
• Internal force distributions in 't Hooft-Polyakov monopole and Julia-Zee dyon
• Gravitational form factors of the nucleon in the Skyrme model based on scale-invariant chiral perturbation theory
• Mechanical form factors and densities of non-relativistic fermions
• Gravitational form factors of pions, kaons and nucleons from dispersion relations
• Scale-anomaly-induced binding pressure in hadrons
• Energy-momentum tensor form factor D(t) of proton and neutron
• The energy-momentum tensor in a classical model of the electron