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arXiv 1401.0934hep-phhep-exnucl-exnucl-th
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Drell-Yan过程中部分子分布的新唯象

Novel Phenomenology of Parton Distributions from the Drell-Yan Process

Jen-Chieh Peng, Jian-Wei Qiu

摘要:

强子碰撞中的Drell-Yan质量轻子对产生为研究强子中的部分子结构提供了一个独特的工具,它与深度非弹性散射是互补的。本文综述了用共线或横动量相关(TMD)部分子分布函数对Drell-Yan过程进行QCD分解的关键概念、近似方法和进展。我们目前的实验结果,从最近的固定目标Drell-Yan以及$W$和$Z$玻色子生产的对撞机,专注于主题的味道结构的核子海,以及提取新的Sivers和布尔-Mulders功能通过单一的横向自旋不对称性和方位角轻子角分布的Drell-Yan过程。展望了未来的Drell-Yan实验。

英文摘要:

The Drell-Yan massive lepton-pair production in hadronic collisions provides a unique tool complementary to the Deep-Inelastic Scattering for probing the partonic substructures in hadrons. We review key concepts, approximations, and progress for QCD factorization of the Drell-Yan process in terms of collinear or transverse momentum dependent (TMD) parton distribution functions. We present experimental results from recent fixed-target Drell-Yan as well as $W$ and $Z$ boson production at colliders, focussing on the topics of flavor structure of the nucleon sea as well as the extraction of novel Sivers and Boer-Mulders functions via single transverse spin asymmetries and azimuthal lepton angular distribution of the Drell-Yan process. Prospects for future Drell-Yan experiments are also presented.

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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