Nonscaling behavior—The proton, neutron, and deuteron structure functions

Abstract
We present a simple parton-model interpretation of the approach to scaling observed in lepton scattering off protons and deuterons. Different final-state configurations are classified and their behavior predicted using quark-counting rules. Good fits to the proton data are obtained. Using a relativistic description of the deuteron, its elastic form factor and inelastic structure function are analyzed. An extraction of the neutron structure function is performed by fitting the deuteron data. Several characteristics of the resulting parametrizations are shown to support our general model. Further experimental consequences are described. DOI: http://dx.doi.org/10.1103/PhysRevD.16.1318 © 1977 The American Physical Society