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arXiv 0710.4110hep-ph
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关于核子海的s-sbar不对称性

On the s-sbar asymmetry of the nucleon sea

C. Avila, I. Monroy, J. C. Sanabria, J. Magnin

摘要:

本文利用质子波函数包含K介子-超子Fock态的模型研究了核子海中的$s-\bar s$不对称性。通过将从全局拟合获得的$s-\bar s$不对称性拟合到深度非弹性散射数据来固定模型的参数。我们讨论了NuTeV协作组测量温伯格角的$s-\bar s$不对称性可能产生的影响。

英文摘要:

We study the $s-\bar s$ asymmetry in the nucleon sea using a model in which the proton wave function includes a Kaon-Hyperon Fock state. Parameters of the model are fixed by fitting the $s-\bar s$ asymmetry obtained from global fits to Deep Inelastic Scattering data. We discuss possible effects of the $s-\bar s$ asymmetry on the measurement of the Weinberg angle by the NuTeV Collaboration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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