This review article discusses the experimental and theoretical status of various Parton Model sum rules. The basis of the sum rules in perturbative QCD is discussed. Their use in extracting the value of the strong coupling constant is evaluated and the failure of the naive version of some of these rules is assessed. This work was supported by the Director, Office of Energy Research, Office of H...

Based on a field theoretically inspired model of light-cone wave functions, we derive valence-like generalized parton distributions and their double distributions from the wave function overlap in the parton number conserved s-channel. The parton number changing contributions in the tchannel are restored from duality. In our construction constraints of positivity and polynomiality are simultane...

We study the relationship between the parton model and the analysis of light-cone singularities for highly inelastic leptonic processes. For deep inelastic lepton scattering the parton model is found to be a momentum space representation of any model in which free field singularities on the light-cone are dominant. Scaling laws and sum rules derived in one approach are shown to obtain in the ot...

High-pT particle spectra in p+p (p+̄p), p+A and A+B collisions are calculated within a lowest-order (LO) perturbative QCD (pQCD) parton model, including intrinsic transverse momentum, its broadening due to initial multiple parton scattering and jet quenching due to parton energy loss inside a dense medium. The intrinsic kT and its broadening in p+A and A+B collisions due to initial multiple part...

Inclusive semileptonic decays are discussed in the framework of heavy quark effective field theory by employing the short distance expansion in the effective theory. The lowest order term turns out to be the parton model; the higher order terms may be regarded as correction terms to the parton model result. The first nonvanishing corrections to the parton model result are given and the lepton e...