New Limits on Heavier Electroweakinos and their LHC Signatures

TL;DR

This paper explores the constraints on heavier electroweakinos in the MSSM using LHC data, and predicts new multilepton signatures that could be observed in future experiments.

Contribution

It provides the first comprehensive bounds on heavier electroweakinos from LHC Run I data and proposes novel multilepton signatures for future detection.

Findings

New bounds on heavier electroweakinos from ATLAS data

Predicted novel multilepton + missing energy signatures

Potential for early discovery before next LHC shutdown

Abstract

We investigate the heavier electroweakino sectors in several versions of the MSSM, which has not been explored so far in the light of the LHC data, and obtain new bounds using the ATLAS Run I constraints in the $3l + {E\!\!\!\!/_T}$ channel. We also venture beyond the trilepton events and predict several novel multilepton + ${E\!\!\!\!/_T}$ signatures of these electroweakinos which may show up before the next shutdown of the LHC.