Flavor Asymmetry of Light Quarks in the Nucleon Sea

Details Flavor Asymmetry of Light Quarks in the Nucleon Sea Flavor Asymmetry of Light Quarks in the Nucleon Sea

2001-09-14

arxiv.org/abs/nucl-ex/0109010v1

Prog.Part.Nucl.Phys.47:203-243,2001

Physics

Nuclear Physics

Nuclear Experiment

41 pages, 22 figures. To appear in "Prog. Part. Nucl. Phys.", volume 47, issue 2, (2001)

Scientific paper

10.1016/S0146-6410(01)00155-7

A surprisingly large asymmetry between the up and down sea quark distributions in the nucleon has been observed in recent deep inelastic scattering and Drell-Yan experiments. This result strongly suggests that the mesonic degrees of freedom play an important role in the description of the parton distributions of the hadronic sea. In this article, we review the current status of our knowledge of the flavor structure of the nucleon sea. The implications of various theoretical models as well as possible future measurements are also discussed.

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