What hadron collider is required to discover or falsify natural supersymmetry?

Abstract

Weak scale supersymmetry (SUSY) remains a compelling extension of the Standard Model because it stabilizes the quantum corrections to the Higgs and W, Z boson masses. In natural SUSY models these corrections are, by definition, never much larger than the corresponding masses. Natural SUSY models all have an upper limit on the gluino mass, too high to lead to observable signals even at the high luminosity LHC. However, in models with gaugino mass unification, the wino is sufficiently light that supersymmetry discovery is possible in other channels over the entire natural SUSY parameter space with no worse than 3% fine-tuning. Here, we examine the SUSY reach in more general models with and without gaugino mass unification (specifically, natural generalized mirage mediation), and show that the high energy LHC (HE-LHC), a pp collider with \sqrt{s}=33 TeV, will be able to detect the SUSY signal over the entire allowed mass range. Thus, HE-LHC would either discover or conclusively falsify natural SUSY with better than 3% fine-tuning using a conservative measure that allows for correlations among the model parameters.

7 pages; 5 png/pdf figures; revised version coincides with published version

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• Anomaly mediated SUSY breaking model retrofitted for naturalness
• The current status of fine-tuning in supersymmetry
• Naturalness versus stringy naturalness (with implications for collider and dark matter searches)
• Superparticle phenomenology from the natural mini-landscape
• Muon g-2 in an Alternative Quasi-Yukawa Unification with Low Fine-Tuned Inverse SeeSaw Mechanism
• Status of searches for electroweak-scale supersymmetry after LHC Run 2
• Gravitino vs Neutralino LSP at the LHC
• Exploring the supersymmetric U(1)${}_{B-L}\times$ U(1)${}_R$ model with dark matter, muon $g-2$ and $Z^{\prime }$ mass limits
• Two natural scenarios for dark matter particles coexisting with supersymmetry
• Least Fine-Tuned U(1) Extended SSM
• Status of Natural Supersymmetry from the GmSUGRA in Light of the current LHC Run-2 and LUX data
• Saving supersymmetry and dark matter WIMPs -- a new kind of dark matter candidate with well-defined mass and couplings
• Naturalness and Dark Matter in a Realistic Intersecting D6-Brane Model
• Detecting Heavy Higgs Bosons from Natural SUSY at a 100 TeV Hadron Collider
• Gluino Search with Stop and Top in Nonuniversal Gaugino Mass Models at LHC and Future Colliders
• Production of a light top-squark pair in association with a light non-standard Higgs boson within the NMSSM at the 13 TeV LHC and a 33 TeV proton collider