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arXiv 1104.5682hep-ph
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用深度非弹性独家实验研究部分子的横向自旋

Investigating Partons' Transverse Spin with Deep Inelastic Exclusive Experiments

Gary R. Goldstein, Simonetta Liuti

摘要:

我们展示了如何深入的虚赝标介子生产实验挑选出的四个手征奇夸克质子GPD的贡献,这是迄今为止难以捉摸的横向分布函数,$h_1$。此外,在所提出的EIC的运动学范围内,电生奇异和粲介子将使人们能够唯一地确定核子结构函数中的非微扰粲分量,同时为夸克/胶子自由度与介子-重子描述的联系提供新的见解.色散关系的使用,以及天真的扩展部分子模型的ERBL区域进行了批判性的分析。

英文摘要:

We show how deeply virtual pseudoscalar meson production experiments single out the contribution of the four chiral odd quark-proton GPDs which are related to the so far elusive transversity distribution function, $h_1$. Furthermore, in the kinematical ranges of the proposed EIC, electroproduction of strange and charmed mesons will allow one to uniquely pin down the non-perturbative charmed component in the nucleon structure function, and at the same time provide new insights in the connection of the quark/gluon degrees of freedom with the meson-baryon description. The use of dispersion relations as well as the naive extension of the parton model to the ERBL region are critically analyzed.

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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