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Light-front Ward-Takahashi Identity for Two-Fermion Systems
J. A. O. Marinho, T. Frederico, E. Pace +2
We propose a three-dimensional electromagnetic current operator within light-front dynamics that satisfies a light-front Ward-Takahashi identity for two-fermion systems. The light-…
Electromagnetic Decays of Vector Mesons in a Covariant Model
Silvia Pisano, Tobias Frederico, Emanuele Pace +1
A fully covariant model for describing the electromagnetic decay of Vector Mesons, both in light and in heavy sectors, is presented. The main ingredients of our approach are i) an…
Timelike and spacelike hadron form factors, Fock state components and light-front dynamics
E. Pace, G. Salme`, T. Frederico +2
A unified description of spacelike and timelike hadron form factors within a light-front model was successfully applied to the pion. The model is extended to the nucleon to study t…
Electromagnetic Form Factors of Hadrons in the Space- and Time-like Regions within a Constituent Quark Model on the Light Front
J. P. de Melo, T. Frederico, E. Pace +1
An approach for describing the electromagnetic form factors of hadrons, in the space- and time-like regions, within a constituent quark model on the light front is shortly illustra…