We calculate shadowing using new data on the gluon density of the Pomeron recently measured with high precision at HERA. The calculations are made in a Glauber-Gribov framework and Pomeron tree-diagrams are summed up within a unitarity-conserving procedure. The total cross section of γA interaction is then found in a parameter-free description, employing gluon diffractive and inclusive distribu...

We explore how nuclear modifications to the nucleon parton distributions affect production of high-p T hadrons in heavy ion collisions. We perform a leading order calculation of the high-p T charged pion, kaon and proton spectra using standard fragmentation functions and shadowing parameterizations. We also consider alternate models of shadowing. Near midrapidity, shadowing is a small effect an...

A method of deductive learning is proposed to con trol deductive inference Our goal is to improve prob lem solving time by experience when that experience monotonically adds knowledge to the knowledge base Accumulating and exploiting experience are done by the schemes of knowledge migration and knowledge shadowing Knowledge migration generates speci c migrated rules from general migrating rules...