STRUCTURE FUNCTIONS AND PARTON DISTRIBUTIONS

Abstract
The MRS parton distribution analysis is described. The latest sets are shown to give an excellent description of a wide range of deep-inelastic and other hard scattering data. Two important theoretical issues—the behavior of the distributions at small x and the flavor structure of the quark sea—are discussed in detail. A comparison with the new structure function data from HERA is made, and the outlook for the future is discussed.

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