Perturbative Generation of a Strange-Quark Asymmetry in the Nucleon

Details Perturbative Generation of a Strange-Quark Asymmetry in the Nucleon Perturbative Generation of a Strange-Quark Asymmetry in the Nucleon

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005iche.conf..616c&link_type=abstract

HIGH ENERGY PHYSICS, ICHEP 2004. Proceedings of the 32nd International Conference. Held 16-22 August 2004 in Beijing, China. Edi

Physics

High Energy Physics

Scientific paper

We point out that perturbative evolution in QCD at three loops generates a strange-antistrange asymmetry s(x) - bar {s}(x) in the nucleon's sea just from the fact that the nucleon has non-vanishing up and down quark valence densities. The recently computed three-loop splitting functions allow for an estimate of this effect. We find that a fairly sizable asymmetry may be generated.

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