title: Charge densities of the neutron and proton.
abstract: A model-independent analysis of the infinite-momentum-frame charge density of partons in the transverse plane is presented for the nucleon. We find that the neutron-parton charge density is negative at the center, so that the square of the transverse charge radius is positive, in contrast with many expectations. Additionally, the proton's central d quark charge density is larger than that of the u quark by about 30%. The proton (neutron) charge density has a long range positively (negatively) charged component.
authors.affiliation: Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA.
authors.forename: Gerald A
authors.initials: GA
authors.lastname: Miller