Prospects for Electroweakino Discovery at a 100 TeV Hadron Collider

Abstract

We investigate the prospects of discovering split Supersymmetry at a future 100 TeV proton-proton collider through the direct production of electroweakino next-to-lightest-supersymmetric-particles (NLSPs). We focus on signatures with multi-lepton and missing energy: $3\ell$, opposite-sign dileptons and same-sign dileptons. We perform a comprehensive study of different electroweakino spectra. A 100 TeV collider with 3000/fb data is expected to exclude Higgsino thermal dark matter candidates with $m_{\mathrm{LSP}}\sim 1$ TeV if Wino NLSPs are lighter than about 3.2 TeV. The $3\ell$ search usually offers the highest mass reach, which varies in the range of (2-4) TeV depending on scenarios. In particular, scenarios with light Higgsinos have generically simplified parameter dependences. We also demonstrate that, at a 100 TeV collider, lepton collimation becomes a crucial issue for NLSPs heavier than about 2.5 TeV. We finally compare our results with the discovery prospects of gluino pair productions and deduce which SUSY breaking model can be discovered first by electroweakino searches.

34 pages, 30 figures

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Cited by in corpus (10)

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• Higgs Self-Coupling Measurements at a 100 TeV Hadron Collider
• Accessing the core of naturalness, nearly degenerate higgsinos, at the LHC
• The Relic Neutralino Surface at a 100 TeV collider
• Running Electroweak Couplings as a Probe of New Physics
• Hunting electroweakinos at future hadron colliders and direct detection experiments
• Prospects for observing charginos and neutralinos at a 100 TeV proton-proton collider
• Dark Matter Signals in Dilepton Production at Hadron Colliders
• Very Degenerate Higgsino Dark Matter
• Proton annihilation at hadron colliders and Kamioka: high-energy versus high-luminosity