Twist-3 contributions in semi-inclusive DIS with transversely polarized target
Twist-3 contributions in semi-inclusive DIS with transversely polarized target
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DOI：
10.1016/j.physletb.2015.10.085
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发表时间：
2012-12
影响因子：
4.4
通讯作者：
Guang-Yi Xiong;Jian-bo Zhang;Ying Chen;Chuan Liu;Yu-bin Liu;Jian-ping Ma
中科院分区：
文献类型：
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作者：
Guang-Yi Xiong;Jian-bo Zhang;Ying Chen;Chuan Liu;Yu-bin Liu;Jian-ping Ma
利用共线分解方法研究了半包含横向极化目标的DIS问题。与横向极化相关的效应在扭曲-3处。我们推导出扭转3对主阶相关强子张量的贡献的完整结果，并构造相应的实验观测值。测量这些观测量将有助于提取产生的非极化强子的扭转2横度分布、扭转3分布和扭转3碎裂函数。与横向动量相关因子分解方法进行了详细比较。
We study semi-inclusive DIS with a transversely polarized target in the approach of collinear factorization. The effects related with the transverse polarization are at twist-3. We derive the complete result of twist-3 contributions to the relevant hadronic tensor at leading order of, and construct correspondingly experimental observables. Measuring these observables will help to extract the twist-2 transversity distribution, twist-3 distributions and twist-3 fragmentation functions of the produced unpolarized hadron. A detailed comparison with the approach of transverse-momentum-dependent factorization is made.