Probing electroweak dark matter at 14 TeV LHC *

Abstract

Abstract 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 level and those up to GeV can be discovered at the level at the 14 TeV LHC with integrated luminosities of 300 fb and 3000 fb , respectively.