论文标题

国际线性对撞机的w姆暗物质

WIMP Dark Matter at the International Linear Collider

论文作者

Habermehl, Moritz, Berggren, Mikael, List, Jenny

论文摘要

在这项研究中,评估了未来的Lepton Collider对WIMP暗物质的敏感性,假设WIMP对生产伴随着初始状态辐射的光子,可以通过该光子进行识别。国际线性撞机(ILC)的国际大型检测器(ILD)概念的完整探测器模拟,以500 \,GEV的\ com能量进行。最高$ 3 $ \的能量尺度可以测试TEV的不同有效操作员的WIMP质量,几乎是\ com Energy的一半。敏感性受益于极化光束,这可以大大减少中微子对的主要SM背景。另外,通过将数据与几种不同的极化配置组合在一起,可以显着降低系统的不确定性。与先前的研究相比,向前探测器的重建得到了改进,系统的不确定性得到了充分处理。结果也被推断为其他\ com能量,亮度和光束极化。这允许为完整的ILC程序提供结果,即从250 \,GEV到1 \,TEV,并为其他计划中的Lepton Colleder提供近似结果。

In this study, the sensitivity of future lepton colliders to WIMP dark matter is evaluated assuming WIMP pair production accompanied by a photon from initial state radiation, through which the process can be identified. A full detector simulation for the International Large Detector (ILD) concept at the International Linear Collider (ILC) is performed for a \com energy of 500\,GeV. Energy scales of up to $3$\,TeV can be tested for different effective operators for WIMP masses almost up to half the \com energy. The sensitivity benefits from the polarised beams, which can reduce the main SM background from neutrino pair production substantially. In addition, systematic uncertainties are shown to be significantly reduced by combining data with several different polarisation configurations. In comparison to a previous study, the reconstruction of the forward detectors has been improved and the systematic uncertainties are fully treated. The results are also extrapolated to other \com energies, luminosities and beam polarisations. This allows to provide results for the full ILC programme, i.e.\ from 250\,GeV to 1\,TeV, as well as to give approximate results for other planned lepton colliders.

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