Multilepton signals of heavier electroweakinos at the LHC

Understand

As sequel to a recent paper we examine the phenomenology of the full electroweakino sector of the pMSSM without invoking the adhoc but often employed assumption that the heavier ones are decoupled.

• We identify several generic models which illustrate the importance of the heavier electroweakinos and constrain them with the LHC $3l$ + ${E\!\!\!\!/_T}$ data.
• The constraints are usually stronger than that for decoupled heavier electroweakinos indicating that the LHC data is already sensitive to their presence.
• We also take into account the constraints from the observed dark matter relic density of the universe and precisely measured anomalous magnetic moment of the muon.