A new parameterization of the nucleon elastic form factors

Abstract

The nucleon elastic form factors are generally interpreted as a mapping of the charge and magnetic current distributions of the proton and neutron. New high Q^2 measurements have opened up fundamental questions about G_ep that remain to be answered. This talk will summarize current developments surrounding the nucleon form factors and explain why they are important to neutrino physicists. New parameterizations of the nucleon form factors, suitable for use by neutrino physicists, will be introduced and discussed.

6 pages, 4 figures, to be published in proceedings of NuInt`05 conference. Replacement 1: Corrected formatting error in Table 1, putting fit parameters in proper columns. Replacement 2: Clarified exponents on parameter a1 of Gmp in Table 1

References in corpus (8)

• The ratio of proton's electric to magnetic form factors measured by polarization transfer
• Measurement of GEp/GMp in ep -> ep to Q2 = 5.6 GeV2
• Two-photon exchange and elastic electron-proton scattering
• How to reconcile the Rosenbluth and the polarization transfer method in the measurement of the proton form factors
• Precision Rosenbluth measurement of the proton elastic form factors
• How well do we know the electromagnetic form factors of the proton?
• Implications of the discrepancy between proton form factor measurements
• Extraction of two-photon contributions to the proton form factors

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