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arXiv 0812.2468hep-phnucl-th
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质子的自旋含量

The spin content of the proton

F. Myhrer

摘要:

我们对质子内部自旋分布的认识已经取得了相当大的进展。最近测量到的质子极化胶子的极限表明极化胶子对质子自旋的贡献很小。我们将表明,一个现代的,相对论性和手征对称的描述核子结构自然解释目前的质子自旋数据。大部分“丢失”的自旋由受限夸克和反夸克的角动量携带。

英文摘要:

Considerable progress has been made in our knowledge of the spin distribution within the proton. The recently measured limits on polarized gluons in the proton suggest polarized gluons contribute very modestly to the proton spin. We will show that a modern, relativistic and chirally symmetric description of the nucleon structure naturally explain the current proton spin data. Most of the "missing" spin is carried by confined quark and antiquarks' angular momentum.

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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