Eur. Phys. J. A (2004) 19: 157-161
https://doi.org/10.1140/epja/i2003-10141-0

Letter

The electric form factor of the neutron and its chiral content

Physikalisches Institut, Universität Tübingen, D-72076, Tübingen, Germany

^* e-mail: grabmayr@uni-tuebingen.de

Abstract

Considering the nucleon as a system of confined valence quarks surrounded by pions we derive a Galster-like parameterization of the neutron electric form factor G _E ⁿ . Furthermore, we show that the proposed parameterization can be linked to properties of the pion cloud. By this, the high-quality data for the pion form factor can be used in predictions of G _E ⁿ in the low-Q ² region, where the direct double-polarization measurements are not available.