Electromagnetic $N-\Delta$ transition form factors in a light-front constituent quark model

Abstract

A parameter-free evaluation of the $N-\Delta$ electromagnetic transition form factors is carried out in a light-front constituent quark model, based on $N$ and $\Delta$ eigenstates of a mass operator which reproduces a large set of hadron energy levels. A one-body electromagnetic current, including the constituent quark form factors previously determined within the same approach from nucleon and pion experimental data, is used. Our prediction for the magnetic transition form factor is compared with the results both of phenomenological analyses of experimental data for the $\Delta$ electroproduction, and of an analysis which includes the effects of off-energy-shell $\pi -N$ final state interaction.

13 pages as .uu encoded postscript file; to appear in Phys. Lett. B

References in corpus (5)

• Baryon Current Matrix Elements in a Light-Front Framework
• Nucleon and pion electromagnetic form factors in a light-front constituent quark model
• Electromagnetic form factors of the $\rho$ meson in a light-front constituent quark model
• Hard Constituent Quarks and Electroweak Properties of Pseudoscalar Mesons
• Spin Force Dependence Of Nucleon Structure Functions

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• D-state configurations in the electromagnetic form factors of the nucleon and the Delta(1232) resonance
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• Kaon Structure in the Nuclear Medium within the Light Front Approach
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• Probing Relativistic Spin Effects in the Nucleon by Means of Drell-Yan Processes
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