Proton electromagnetic-form-factor ratios at low Q2

Gerald A. Miller, E. Piasetzky, G. Ron

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

We study the ratio R μGE(Q2)/GM(Q2) of the proton at very small values of Q2. Radii commonly associated with these form factors are not moments of charge or magnetization densities. We show that the form factor F2 is correctly interpretable as the two-dimensional Fourier transformation of a magnetization density. A relationship between the measurable ratio and moments of true charge and magnetization densities is derived and used to show that the magnetization density extends further than the charge density, in contrast with expectations based on the measured reduction of R as Q2 increases.

Original languageAmerican English
Article number082002
JournalPhysical Review Letters
Volume101
Issue number8
DOIs
StatePublished - 22 Aug 2008
Externally publishedYes

Fingerprint

Dive into the research topics of 'Proton electromagnetic-form-factor ratios at low Q2'. Together they form a unique fingerprint.

Cite this