The Inclusive-Exclusive Connection and the Neutron Negative Central Charge Density

Abstract

We find an interpretation of the recent finding that the central charge density of the neutron is negative by using models of generalized parton distributions at zero skewness to relate the behavior of deep inelastic scattering quark distributions, evaluated at large values of Bjorken x, to the transverse charge density evaluated at small distances. The key physical input of these models is the Drell-Yan-West relation We find that the d quarks dominate the neutron structure function for large values of Bjorken x, where the large longitudinal momentum of the struck quark has a significant impact on determining the center-of-momentum of the system, and thus the "center" of the nucleon in the transverse position plane.

17 pages, 8 figures. Text of an invited talk presented by G. A. Miller at the 2008 Division of Nuclear Physics Meeting in Oakland. Prepared for Int. Journ. Mod. Phys. E

References in corpus (10)

• Nucleon Electromagnetic Form Factors
• Charge Density of the Neutron
• A new parameterization of the nucleon elastic form factors
• Nucleon electromagnetic form factors
• Charge Symmetry Breaking and QCD
• Empirical transverse charge densities in the nucleon and the nucleon-to-$\Delta$ transition
• Neutron Structure Functions
• Generalized Parton Distributions from Hadronic Observables: Zero Skewness
• Proton Electromagnetic Form Factor Ratios at Low Q^2
• The neutron negative central charge density: an inclusive-exclusive connection