We revisit the thermal Majorana dark matter from the viewpoint of the minimal effective field theory. In this framework, analytical results for dark matter annihilation into Standard Model particles are derived. The d...We revisit the thermal Majorana dark matter from the viewpoint of the minimal effective field theory. In this framework, analytical results for dark matter annihilation into Standard Model particles are derived. The dark matter parameter space, subject to the latest LUX, Panda X-Ⅱ and Xenon-1 T limits, is presented in a model-independent way. Applications to the singlet-doublet and MSSM are presented.展开更多
Well-motivated electroweak dark matter is often hosted by an extended electroweak sector that also contains new lepton pairs with masses near the weak scale.In this study,we explore such electroweak dark matter by com...Well-motivated electroweak dark matter is often hosted by an extended electroweak sector that also contains new lepton pairs with masses near the weak scale.In this study,we explore such electroweak dark matter by combining dark matter direct detection experiments and high-luminosity LHC probes of new lepton pairs.Using Z- and W-associated electroweak processes with two or three lepton final states,we show that depending on the overall coupling constant,dark matter masses of up to 170−210 GeV can be excluded at the 2σ level and those up to 175−205 GeV can be discovered at the 5σ level at the 14 TeV LHC with integrated luminosities of 300 fb^−1 and 3000 fb^−1,respectively.展开更多
基金Supported by National Natural Science Foundation of China(11775039)Postdoctoral Science Foundation of China(2017M611008)
文摘We revisit the thermal Majorana dark matter from the viewpoint of the minimal effective field theory. In this framework, analytical results for dark matter annihilation into Standard Model particles are derived. The dark matter parameter space, subject to the latest LUX, Panda X-Ⅱ and Xenon-1 T limits, is presented in a model-independent way. Applications to the singlet-doublet and MSSM are presented.
基金Supported by National Natural Science Foundation of China(11775039)the Chinese Scholarship Council and the Fundamental Research Funds for the Central Universities at CQU with(cqu2017hbrc1B05)。
文摘Well-motivated electroweak dark matter is often hosted by an extended electroweak sector that also contains new lepton pairs with masses near the weak scale.In this study,we explore such electroweak dark matter by combining dark matter direct detection experiments and high-luminosity LHC probes of new lepton pairs.Using Z- and W-associated electroweak processes with two or three lepton final states,we show that depending on the overall coupling constant,dark matter masses of up to 170−210 GeV can be excluded at the 2σ level and those up to 175−205 GeV can be discovered at the 5σ level at the 14 TeV LHC with integrated luminosities of 300 fb^−1 and 3000 fb^−1,respectively.
