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arXiv 1604.03045hep-ph
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通过双射流加上LHC上缺失的横向能量通道探索惰性双重态模型

Exploring the Inert Doublet Model through the dijet plus missing transverse energy channel at the LHC

P. Poulose, Shibananda Sahoo, K. Sridhar

摘要:

在对惰性双重模型(IDM)的研究中,我们提出在大型强子对撞机(LHC)上利用双喷流+缺失的横向能道将是寻找IDM标量粒子的一种有效途径。该通道接收来自规范玻色子融合和$t-$通道产生的贡献,以及来自$H^+$相关产生的贡献。我们进行的分析,包括研究的标准模型(SM)的背景与假设的系统不确定性,并优化选择标准,采用合适的削减运动学变量,以最大限度地提高信号的意义。我们发现,与LHC的高亮度选项,这个通道有可能探测IDM的质量范围高达约400 GeV,这是无法通过其他轻子通道。在质量约为65 GeV的轻暗物质的情况下,质量范围约为200 GeV的带电希格斯粒子提供了最好的可能性,其信号显著性约为$2σ$,积分亮度约为3000 fb $^{-1}$。

英文摘要:

In this study of the Inert Doublet Model (IDM), we propose that the dijet + missing transverse energy channel at the Large Hadron Collider (LHC) will be an effective way of searching for the scalar particles of the IDM. This channel receives contributions from gauge boson fusion, and $t-$channel production, along with contributions from $H^+$ associated production. We perform the analysis including study of the Standard Model (SM) background with assumed systematic uncertainty, and optimise the selection criteria employing suitable cuts on the kinematic variables to maximise the signal significance. We find that with high luminosity option of the LHC, this channel has the potential to probe the IDM in the mass range of up to about 400 GeV, which is not accessible through other leptonic channels. In a scenario with light dark matter of mass about 65 GeV, charged Higgs in the mass range of around 200 GeV provides the best possibility with a signal significance of about $2σ$ at an integrated luminosity of about 3000 fb$^{-1}$.

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