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Nucleon structure at large x: nuclear effects in deuterium (1006.4134v1)
Published 21 Jun 2010 in nucl-th
Abstract: I review quark momentum distributions in the nucleon at large momentum fractions x. Particular attention is paid to the impact of nuclear effects in deuterium on the d/u quark distribution ratio as x -> 1. A new global study of parton distributions, using less restrictive kinematic cuts in Q2 and W2, finds strong suppression of the d quark distribution once nuclear corrections are accounted for.
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