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arXiv 1809.05129hep-ph
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从LHC和其它资料看重电弱子的过去、现在和未来

The past, present and future of the heavier electroweakinos in the light of LHC and other data

Amitava Datta, Nabanita Ganguly

摘要:

本文的目的是展示新的多轻子($nl + E\!\!\!\!/_T$,n = 3 - 5)的信号,迄今尚未在大型强子对撞机探索,产生较重的电弱子,在几个通用的pMSSM在即将到来的大型强子对撞机实验。首先,我们简要回顾了我们对这些模型的完整电弱子扇区的旧限制,这些模型包含较轻和较重的超粒子,使用来自LHC运行I的ATLAS三轻子数据。接下来,我们推导出新的更强的约束,这是第一次使用ATLAS运行II数据。我们确定了一些基准点,并探讨了在未来的LHC实验中观察多轻子事件的前景。我们的重点是与$n > 3$这是较重的电弱子的标志渠道。如果将较轻的电弱伴子的光谱压缩,这些信号很可能成为高亮度LHC发现电弱伴子的通道。我们还讨论了新的LHC约束对宇宙暗物质遗迹密度观测值、μ子异常磁矩测量值和暗物质直接探测实验的影响。

英文摘要:

The aim of this paper is to showcase the novel multilepton ($nl + E\!\!\!\!/_T$, n = 3 - 5) signals, hitherto unexplored at the LHC, arising from the heavier electroweakinos, in several generic pMSSMs at the upcoming LHC experiments. We first briefly review our old constraints on the full electroweakino sector of these models, containing both lighter and heavier sparticles, using the ATLAS trilepton data from the LHC Run I. Next we derive new stronger constraints on this sector for the first time using the ATLAS Run II data. We identify some benchmark points and explore the prospect of observing multilepton events in future LHC experiments. Our focus is on the channels with $n > 3$ which are the hallmarks of the heavier electroweakinos. If the spectrum of the lighter electroweakinos is compressed, these signals might very well be the discovery channels of the electroweakinos at the high luminosity LHC. We also discuss the implications of the new LHC constraints for the observed dark matter relic density of the universe, the measured value of the anomalous magnetic moment of the muon and the dark matter direct detection experiments.

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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