A Field-Theoretic Model for Electron-Nucleon Deep Inelastic Scattering

The structure functions for inelastic electron-nucleon scattering are studied in the Bjorken limit in the framework of canonical field theory. The " parton " model of Feynman is derived and the structure functions' asymptotic behavior for large energy transfers is computed. In this note we report some preliminary results derived from a field theoretical study of the structure functions WI and W2 summarizing inelastic electron nucleon scattering as defined by E w = P 47r2-g l-(dx) e+iqx 9cl =-'gpv-q W1(q2, v) +'(p-9 cl2 M2 p cl where I P > is a one-nucleon state with four momentum P P' J,(x) is the total hadronic electromagnetic current operator; qp is the four momentum of the virtual photon; q2 =-Q2 < 0 is th e square of the virtual photods mass and Mu = Pm q is the energy transfer to the proton in the laboratory system. An average over the nucleon spin is understood in the definition of W W'