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arXiv 2203.06237hep-phhep-ex
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在LHeC和FCC-eh上的精密电弱物理

Precision electroweak physics at the LHeC and FCC-eh

Daniel Britzger, Max Klein, Hubert Spiesberger

摘要:

欧洲核子研究中心拟议的电子质子对撞机实验LHeC和FCC-eh是本世纪可以实现的最高分辨率显微镜,它们将代表一个真正独特的研究设施。我们利用模拟的中性电流和带电电流深非弹性散射数据的LHeC和FCC-eh和检查他们的灵敏度,在电弱部门的标准模型(SM)的精密物理,如有效弱混合角$\sin^2θ_{\textrm{W},\ell}^\textrm{eff}$,或轻夸克弱中性电流耦合。独特的测量是进一步可行的,在高精度的弱混合角的运行,以及在带电电流相互作用的电弱效应。使用通用的$S$、$T$和$U$参数化来研究对超出SM效应的敏感性。本文总结了以往关于LHeC的研究,并对FCC-eh的研究进行了展望。

英文摘要:

The proposed electron-proton collider experiments LHeC and FCC-eh at CERN are the highest resolution microscopes that can be realised in the present century and they would represent a really unique research facility. We exploit simulated neutral-current and charged-current deep-inelastic scattering data of the LHeC and the FCC-eh and examine their sensitivity for precision physics in the Electroweak sector of the Standard Model (SM), like the effective weak mixing angle $\sin^2θ_{\textrm{W},\ell}^\textrm{eff}$, or the light-quark weak-neutral-current couplings. Unique measurements are further feasible at high precision for the running of the weak mixing angle, as well as for electroweak effects in charged current interactions. The sensitivity to beyond SM effects is studied using the generic $S$, $T$ and $U$ parameterization. The report summarizes previous studies about the LHeC and presents new prospects for the FCC-eh.

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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