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arXiv 2008.00655hep-phhep-exnucl-exnucl-th
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喷射荷:EIC上自旋不对称性的味棱镜

Jet Charge: A Flavor Prism for Spin Asymmetries at the EIC

Zhong-Bo Kang, Xiaohui Liu, Sonny Mantry, Ding Yu Shao

摘要:

我们提出了在电子-离子对撞机(EIC)的核子自旋程序中,作为一种新的探针的味道结构的喷流电荷可观察。我们表明,喷射电荷测量可以大大提高自旋不对称性的灵敏度,不同的部分子口味的核子。这种灵敏度可以通过只使用喷流中的强子种类(π介子或K介子)的子集来构造喷流电荷来进一步提高。作为一个例子,我们使用的Sivers不对称性背靠背电子喷射生产在EIC表明,喷射电荷可以是一个独特的工具,在约束Sivers功能不同的部分子口味。

英文摘要:

We propose the jet charge observable as a novel probe of flavor structure in the nucleon spin program at the Electron Ion Collider (EIC). We show that jet charge measurements can substantially enhance the sensitivity of spin asymmetries to different partonic flavors in the nucleon. This sensitivity can be further improved by constructing the jet charge using only a subset of hadron species (pions or kaons) in the jet. As an example, we use the Sivers asymmetry in back-to-back electron-jet production at the EIC to show that the jet charge can be a unique tool in constraining the Sivers function for different partonic flavors.

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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