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arXiv 1709.08400hep-phnucl-th
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氘核张量自旋结构的标准卷积描述

Standard convolution description of deuteron tensor spin structure

W. Cosyn, Yu-Bing Dong, S. Kumano, M. Sargsian

摘要:

自旋1的强子具有自旋1/2的强子所没有的额外结构函数。这些可以探索强子结构和QCD动力学的新方面。对于氘核,张量结构函数$b_1$固有地混合了夸克和核的自由度。这些会议讨论了两个标准的卷积模型应用于计算的氘核$b_1$结构功能。我们发现与现有的HERMES数据和其他卷积模型计算有很大的差异。这为氘核中对$b_1$的非标准贡献留下了空间。我们还讨论了在HERMES和Jefferson实验室的模型计算和运动学数据提取中,高扭曲核效应的影响。

英文摘要:

Spin-1 hadrons have additional structure functions not present for spin 1/2 hadrons. These could probe novel aspects of hadron structure and QCD dynamics. For the deuteron, the tensor structure function $b_1$ inherently mixes quark and nuclear degrees of freedom. These proceedings discuss two standard convolution models applied to calculations of the deuteron $b_1$ structure functions. We find large differences with the existing HERMES data and other convolution model calculations. This leaves room for non-standard contributions to $b_1$ in the deuteron. We also discuss the influence of higher twist nuclear effects in the model calculations and data extraction at kinematics covered in HERMES and Jefferson Lab.

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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