The s-s(bar) asymmetry in nucleon and "NuTeV anomaly"

Details The s-s(bar) asymmetry in nucleon and "NuTeV anomaly" The s-s(bar) asymmetry in nucleon and "NuTeV anomaly"

2007-10-26

arxiv.org/abs/0710.5032v1

Phys.Lett.B660:501-504,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 figures

Scientific paper

10.1016/j.physletb.2007.12.051

The $s$-$\bar{s}$ asymmetry in nucleon sea is an important observable for understanding nucleon structure and strong interaction. There have been many theoretical attempts on this subject and recently on its relation to the "NuTeV anomaly". Calculations with different theoretical frameworks lead to different conclusions. Here assuming a newly proposed penta-quark configuration for the $s$-$\bar{s}$ asymmetry in nucleon, we examine its contribution to the "NuTeV anomaly", with a result of about $10-20%$.

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