Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-06-27
Physics
High Energy Physics
High Energy Physics - Phenomenology
1+4 pages, LaTeX2e, ws-p8-50x6-00.cls, 4 eps figures. Talk given at the 9th International Workshop on Deep Inelastic Scatterin
Scientific paper
Optimum nuclear parton distributions are determined by an analysis of muon and electron deep inelastic scattering data. Assuming simple A dependence and polynomial functions of x and 1-x for nuclear modification of parton distributions, we determine the initial distributions by a chi^2 analysis. Although valence-quark distributions are relatively well determined except for the small-x region, antiquark distributions cannot be fixed at medium and large x. It is also difficult to fix gluon distributions.
Hirai Makoto
Kumano S.
Miyama M.
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