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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1404.3754hep-phhep-latnucl-th
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从原子核结构到核子结构

From Nuclear Structure to Nucleon Structure

Keh-Fei Liu

摘要:

指出了用多体理论方法研究原子核结构与用格点量子色动力学计算核子结构的相似性。我们将给出一个例子,说明如何从实验数据、部分子分布函数的整体拟合和格点计算的组合中获得连接的海部分子。我们还在猝灭近似下完整地计算了质子动量和角动量的夸克和胶分解。发现夸克轨道角动量约占质子自旋的50%。

英文摘要:

Similarities between nuclear structure study with many-body theory approach and nucleon structure calculations with lattice QCD are pointed out. We will give an example of how to obtain the connected sea partons from a combination of the experimental data, a global fit of parton distribution functions and a lattice calculation. We also present a complete calculation of the quark and glue decomposition of the proton momentum and angular momentum in the quenched approximation. It is found that the quark orbital angular momentum constitutes about 50% of the proton spin.

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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