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arXiv 1402.7074hep-phhep-ex
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LHC暗物质的单希格斯探测

Mono-Higgs Detection of Dark Matter at the LHC

Asher Berlin, Tongyan Lin, Lian-Tao Wang

摘要:

受最近发现的希格斯玻色子的启发,我们研究了丢失的能量加上希格斯最终状态是LHC中暗物质的主要信号通道的可能性。我们考虑的例子,高维运营商的希格斯和暗物质对产生通过离壳Z或光子,发现潜在的灵敏度在大型强子对撞机的截止尺度约几百GeV。通过引入Z'和第二个Higgs二重态,我们将这种产生机制推广到一个简化的模型,其中赝标耦合到暗物质。共振产生的Z'衰变为希格斯粒子加上不可见的粒子,产生了一个潜在的单希格斯信号。这在14 TeV LHC低tan β时,Z'质量大约在600 GeV到1.3 TeV的范围内时可以观察到。

英文摘要:

Motivated by the recent discovery of the Higgs boson, we investigate the possibility that a missing energy plus Higgs final state is the dominant signal channel for dark matter at the LHC. We consider examples of higher-dimension operators where a Higgs and dark matter pair are produced through an off-shell Z or photon, finding potential sensitivity at the LHC to cutoff scales of around a few hundred GeV. We generalize this production mechanism to a simplified model by introducing a Z' as well as a second Higgs doublet, where the pseudoscalar couples to dark matter. Resonant production of the Z' which decays to a Higgs plus invisible particles gives rise to a potential mono-Higgs signal. This may be observable at the 14 TeV LHC at low tan beta and when the Z' mass is roughly in the range 600 GeV to 1.3 TeV.

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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