Electroweakino Searches: A Comparative Study for LHC and ILC (A Snowmass White Paper)
Abstract
We make a systematic and comparative study for the LHC and ILC for the electroweakino searches in the Minimal Supersymmetric Standard Model. We adopt a general bottom-up approach and scan over the parameter regions for all the three cases of the lightest supersymmetric particle being Bino-, Wino-, and Higgsino-like. The electroweakino signal from pair production and subsequent decay to Wh (h to b b) final state may yield a sensitivity of 95% C.L. exclusion (5sigma discovery) to the mass scale M2, mu ~ 250-400 GeV (200-250 GeV) at the 14 TeV LHC with an luminosity of 300 fb-1. Combining with all the other decay channels, the 95% C.L. exclusion (5sigma discovery) may be extended to M2, mu ~ 480-700 GeV (320-500 GeV). At the ILC, the electroweakinos could be readily discovered once the kinematical threshold is crossed, and their properties could be thoroughly studied.
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