Scaling law for the electromagnetic form factors of the proton

8 May 2000

journal article
letter
Published by IOP Publishing in Journal of Physics G: Nuclear and Particle Physics

Vol. 26 (6) , L75-L80
https://doi.org/10.1088/0954-3899/26/6/101

Abstract

The violation of the scaling law for the electric and magnetic form factors of the proton is examined within the cloudy bag model. We find that the suppression of the ratio of the electric and magnetic form factors is natural in the relativistic bag model. The pion cloud plays a moderate role in moving the ratio towards unity at low momentum transfer. The scaling violation increases as the momentum transfer increases because of the rapid drop of the pionic contribution. Our result is in reasonable agreement with the recent data from TJNAF.

Keywords

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Version 1, 1999-11-19, ArXiv

This publication has 24 references indexed in Scilit:

$G_{E_{p}} / G_{M_{p}}$ Ratio by Polarization Transfer in $\vec{e} p \to e \vec{p}$
Physical Review Letters, 2000
Light-front CQM calculations of baryon electromagnetic form factors
Nuclear Physics A, 1997
Dispersion-theoretical analysis of the nucleon electromagnetic form factors
Nuclear Physics A, 1996
Baryon current matrix elements in a light-front framework
Physical Review D, 1995
Relativistic constituent-quark model of nucleon form factors
Physical Review D, 1991
A relativized quark model for radiative baryon transitions
The European Physical Journal C, 1990
Semiphenomenological synthesis of meson and quark dynamics and the E.M. structure of the nucleon
Zeitschrift für Physik A Atoms and Nuclei, 1985
Bag-model electromagnetic form factors
Physical Review D, 1979
Analysis of electromagnetic nucleon form factors
Nuclear Physics B, 1976
High Energy Elastic Scattering of Electrons on Protons
Physical Review B, 1950