The past, present and future of the heavier electroweakinos in the light of LHC and other data

Understand

The aim of this paper is to showcase the novel multilepton ($nl + E\!\!\!\!/_T$, n = 3 - 5) signals, hitherto unexplored at the LHC, arising from the heavier electroweakinos, in several generic pMSSMs at the upcoming LHC experiments.

• We first briefly review our old constraints on the full electroweakino sector of these models, containing both lighter and heavier sparticles, using the ATLAS trilepton data from the LHC Run I.
• Next we derive new stronger constraints on this sector for the first time using the ATLAS Run II data.
• We identify some benchmark points and explore the prospect of observing multilepton events in future LHC experiments.