Electroweakino constraints from LHC data

Understand

We investigate the sensitivity of existing LHC searches to the charginos and neutralinos of the MSSM when all the other superpartners are decoupled.

• In this limit, the underlying parameter space reduces to a simple four-dimensional set $\{M_1,\,M_2,\,\mu,\,\tan\beta\}$.
• We examine the constraints placed on this parameter space by a broad range of LHC searches taking into account the full set of relevant production and decay channels.
• We find that the exclusions implied by these searches exceed existing limits from LEP only for smaller values of the Bino mass $M_1 \lesssim 150$ GeV.