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

Abstract

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 $10-20$.

arXiv comment9 pages, 2 figures

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Cited by in corpus (7)

• Effects of new leptons in Electroweak Precision Data
• Five-quark components in baryons
• Parton distributions from nonlocal chiral SU(3) effective theory: Flavor asymmetries
• Sea flavor content of octet baryons and intrinsic five-quark Fock states
• Perturbative and nonperturbative contributions to the strange quark asymmetry in the nucleon
• Nucleon strange $s\bar{s}$ asymmetry to the $\Lambda /\bar{\Lambda }$ fragmentation
• Additional Corrections to the Gross-Llewellyn Smith Sum Rule