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arXiv 0711.1949hep-ph
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质子和中子的结构函数矩

Structure Function Moments of Proton and Neutron

M. Osipenko

摘要:

给出了质子和氘核结构函数F2的实验矩的唯象分析。讨论了大x下d/u比、高扭转的同位旋依赖性以及与格点量子色动力学计算结果的比较。我们简要地回顾一下这些结果:在x>1时,所得到的比与渐近极限d/u>0一致,高扭转的总贡献与同位旋无关,非单重态矩与晶格数据非常一致。我们在此介绍由公众讨论引发的分析的一些细节。

英文摘要:

QCD-inspired phenomenological analysis of experimental moments of proton and deuteron structure functions F2 have been presented. The obtained results on the d/u ratio at large-x, isospin dependence of higher twists and comparison with Lattice QCD calculations were discussed. We remind shortly these results: the obtained ratio is consistent with the asymptotic limit d/u-->0 at x-->1, the total contribution of higher twists is found to be isospin independent and the non-singlet moments are in excellent agreement with the Lattice data. We present here some details of the analysis triggered by the public discussion.

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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