Parton Distributions in Nuclei: Overview and Prospect
Abstract
Description
We give a brief overview of nuclear parton distributions. First, the EMC effect is discussed together with possible interpretations such as nuclear binding and $Q^2$ rescaling. Next, we explain shadowing descriptions: vector-meson-dominance-type and parton-recombination models. Nuclear dependence of $Q^2$ evolution should be interesting in testing whether or not DGLAP equations could be applied to nuclear structure functions. Status of nuclear sea-quark and gluon distributions is discussed. The structure function $b_1$, which will be measured at HERMES and possibly at ELFE, could shed light on a new aspect of high-energy spin physics.
11 pages, LATEX2e, 5 eps figures. Invited talk given at the Workshop on "New Developments in QCD and Hadron Physics", Kyoto, Japan, Jan.22-24, 1996. Complete postscript file including the figures is available at ftp://ftp.cc.saga-u.ac.jp/pub/paper/riko/quantum1/saga-he-98.ps.gz or at http://www.cc.saga-u.ac.jp/saga-u/riko/physics/quantum1/kumano.html
11 pages, LATEX2e, 5 eps figures. Invited talk given at the Workshop on "New Developments in QCD and Hadron Physics", Kyoto, Japan, Jan.22-24, 1996. Complete postscript file including the figures is available at ftp://ftp.cc.saga-u.ac.jp/pub/paper/riko/quantum1/saga-he-98.ps.gz or at http://www.cc.saga-u.ac.jp/saga-u/riko/physics/quantum1/kumano.html