The electro-magnetic Form Factors of the Proton in Chiral Soliton Models

Abstract

The electro-magnetic form factors of the proton are calculated in a chiral soliton model with relativistic corrections. The magnetic form factor $G_M$ is shown to agree well with the new SLAC data for spacelike $Q^2$ up to 30 (GeV/c)$^2$ if superconvergence is imposed. The direct continuation through a Laurent series to the timelike region above the physical threshold is in fair agreement with the presently available set of data. The electric form factor $G_E$ is dominated by a zero in the few (GeV/c)$^2$ region which appears to be in conflict with the SLAC data.