Electromagnetic and gravitational form factors in simulated QED and Yukawa model

Abstract

The light-cone Fock state representation of composite systems has number of remarkable properties and for systems such as hadrons they have exact representation for angular momentum, energy momentum tensor. We investigate the electromagnetic and gravitational form factors with zero momentum transfer in QED and Yukawa theory. To improve the convergence near the end points of $x$ qualitatively as well as to check the consistency of the model, we differentiate the wavefunction w.r.t. bound state mass. We test the behaviour of the anomalous gravitomagnetic moment, which follows directly from the Lorentz boost properties of the light-cone Fock representation, for the simulated model as well as the Yukawa model. We also discuss the Pauli form factor obtained from the spin-flip matrix element.

11 pages. To appear in Mod. Phys. Lett. A. arXiv admin note: text overlap with arXiv:hep-ph/0009228, arXiv:hep-th/0003082 by other authors

References in corpus (9)

• The COMPASS Experiment at CERN
• Nucleon electromagnetic and gravitational form factors from holography
• Light-Front Dynamics and AdS/QCD Correspondence: Gravitational Form Factors of Composite Hadrons
• Generalized parton distributions of the pion in chiral quark models and their QCD evolution
• Gravitational and higher-order form factors of the pion in chiral quark models
• Hadron Optics in Three-Dimensional Invariant Coordinate Space from Deeply Virtual Compton Scattering
• Parton Distributions in Impact Parameter Space
• Abelian-Higgs model from Cho-Faddeev-Niemi decomposition
• Hadron Form Factors in AdS/QCD

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