Quantifying the nucleon's pion cloud with transverse charge densities

M. Strikman, C. Weiss

Research output: Contribution to journalArticle

24 Scopus citations


The transverse densities in a fast-moving nucleon offer a model-independent framework for analyzing the spatial structure of the pion cloud and its role in current matrix elements. We calculate the chiral large-distance component of the charge density in a dispersion representation of the form factor and discuss its partonic interpretation. It dominates over the nonchiral density only at surprisingly large distances above ~2 fm. The chiral component can be probed in precision low-Q2 elastic eN scattering or in peripheral deep-inelastic processes that resolve its quark/gluon content.

Original languageEnglish (US)
Article number042201
JournalPhysical Review C - Nuclear Physics
Issue number4
Publication statusPublished - Jan 1 2010


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this