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arXiv 1608.08686hep-phhep-ex
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在EIC用重夸克探测核胶子

Probing nuclear gluons with heavy quarks at EIC

E. Chudakov, D. Higinbotham, Ch. Hyde, S. Furletov, Yu. Furletova, D. Nguyen, M. Stratmann, M. Strikman, C. Weiss, R. Yoshida

摘要:

我们探讨了在未来的电子-离子对撞机(EIC)上利用重夸克产生(开魅,美)直接测量核胶子密度的可行性。我们集中在区域x > 0.3(EMC效应)和x ~ 0.05-0.1(反遮蔽),在那里胶子密度的核修改提供洞察非核子自由度和核子-核子相互作用的QCD结构。本文描述了大x_B下核深度非弹性散射(DIS)中的粲产生率和动量分布,并评述了在EIC下利用下一代探测器进行粲重建的可能方法(pi/K识别、跟踪、顶点检测)。

英文摘要:

We explore the feasibility of direct measurements of nuclear gluon densities using heavy-quark production (open charm, beauty) at a future Electron-Ion Collider (EIC). We focus on the regions x > 0.3 (EMC effect) and x ~ 0.05-0.1 (antishadowing), where the nuclear modifications of the gluon density offer insight into non-nucleonic degrees of freedom and the QCD structure of nucleon-nucleon interactions. We describe the charm production rates and momentum distributions in nuclear deep-inelastic scattering (DIS) at large x_B, and comment on the possible methods for charm reconstruction using next-generation detectors at the EIC (pi/K identification, tracking, vertex detection).

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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