Minimal Natural Supersymmetry after the LHC8

Abstract

In this work, we present limits on natural supersymmetry scenarios based on searches in data taken during run 1 of the LHC. We consider a set of 22000 model points in a six dimensional parameter space. These scenarios are minimal in the sense of only keeping those superparticles relatively light that are required to cancel the leading quadratically divergent quantum corrections (from the top and QCD sector) to the Higgs mass in the Standard Model. The resulting mass spectra feature higgsinos as the lightest supersymmetric particle, as well as relatively light third generation $SU(2)$ doublet squarks and $SU(2)$ singlet stops and gluinos while assuming a Standard Model like Higgs boson. All remaining supersymmetric particles and Higgs bosons are assumed to be decoupled. We check each parameter set against a large number of LHC searches as implemented in the public code {\tt CheckMATE}. These searches show a considerable degree of complementarity, i.e. in general many searches have to be considered in order to check whether a given scenario is allowed. We delineate allowed and excluded regions in parameter space. For example, we find that all scenarios where either $m_{{\tilde{t}}_1}<230$ GeV or $m_{\tilde{g}}<440$ GeV are clearly excluded, while all model points where $m_{{\tilde{t}}_1}>660$ GeV and $m_{\tilde{g}}>1180$ GeV remain allowed.

Added references and discussions. Current version matches published version

References in corpus (46)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• An Introduction to PYTHIA 8.2
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• MadGraph 5 : Going Beyond
• Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• SPheno 3.1: extensions including flavour, CP-phases and models beyond the MSSM
• Measuring masses of semi-invisibly decaying particles pair produced at hadron colliders
• Matching matrix elements and shower evolution for top-quark production in hadronic collisions
• Natural SUSY Endures
• Multi-TeV Scalars are Natural in Minimal Supergravity
• Neutralino-Stau Coannihilation and the Cosmological Upper Limit on the Mass of the Lightest Supersymmetric Particle
• Searches for supersymmetric particles in e+e- collisions up to 208 GeV and interpretation of the results within the MSSM
• Radiative natural SUSY with a 125 GeV Higgs boson
• Search for top-squark pair production in the single-lepton final state in pp collisions at sqrt(s) = 8 TeV
• Supersymmetry, Naturalness, and Signatures at the LHC
• Searches for long-lived charged particles in pp collisions at sqrt(s) = 7 and 8 TeV
• Radiative natural supersymmetry: Reconciling electroweak fine-tuning and the Higgs boson mass
• Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in sqrt{s}=8 TeV pp collisions with the ATLAS detector
• Search for pair-produced third-generation squarks decaying via charm quarks or in compressed supersymmetric scenarios in $pp$ collisions at $\sqrt{s}=8$TeV with the ATLAS detector
• Search for top squark pair production in final states with one isolated lepton, jets, and missing transverse momentum in $\sqrt{s}=$ 8 TeV pp collisions with the ATLAS detector
• ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
• Search for supersymmetry in hadronic final states with missing transverse energy using the variables AlphaT and b-quark multiplicity in pp collisions at 8 TeV
• A Non-Standard String/SUSY Scenario and its Phenomenological Implications
• Model-Independent Jets plus Missing Energy Searches
• Search for direct top-squark pair production in final states with two leptons in pp collisions at sqrt(s)=8TeV with the ATLAS detector
• Natural Supersymmetry: LHC, dark matter and ILC searches
• Summary of the searches for squarks and gluinos using $\sqrt{s}$ = 8 TeV pp collisions with the ATLAS experiment at the LHC
• Search for supersymmetry at sqrt(s)=8 TeV in final states with jets and two same-sign leptons or three leptons with the ATLAS detector
• Light Stop Searches at the LHC with Monojet Events
• Monojets and mono-photons from light higgsino pair production at LHC14
• Light Stop Searches at the LHC in Events with One Hard Photon or Jet and Missing Energy
• Current experimental bounds on stop mass in natural SUSY
• Stops and MET: the shape of things to come
• Mainly axion cold dark matter from natural supersymmetry
• Search for Nearly Mass-Degenerate Charginos and Neutralinos at LEP
• Stop on Top
• Natural MSSM after the LHC 8 TeV run
• Closing up a light stop window in natural SUSY at LHC
• What is a Natural SUSY scenario?
• Search for metastable heavy charged particles with large ionisation energy loss in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the ATLAS experiment
• `Stop' that ambulance! New physics at the LHC?
• Explaining a CMS $eejj$ Excess With $\mathcal{R}-$parity Violating Supersymmetry and Implications for Neutrinoless Double Beta Decay
• Universal mass limits on gluino and third-generation squarks in the context of Natural-like SUSY spectra
• Closing in on compressed gluino-neutralino spectra at the LHC

Cited by in corpus (26)

• The BSM-AI project: SUSY-AI - Generalizing LHC limits on Supersymmetry with Machine Learning
• Probing the MSSM explanation of the muon g-2 anomaly in dark matter experiments and at a 100 TeV $pp$ collider
• The Natural Explanation of the Muon Anomalous Magnetic Moment via the Electroweak Supersymmetry from the GmSUGRA in the MSSM
• R-Parity Violation at the LHC
• Supersymmetry with Dark Matter is still natural
• Top-squark in natural SUSY under current LHC run-2 data
• The current status of fine-tuning in supersymmetry
• Confronting the neutralino and chargino sector of the NMSSM to the multi-lepton searches at the LHC
• Constraining Natural SUSY via the Higgs Coupling and the Muon Anomalous Magnetic Moment Measurements
• Prospects for natural SUSY
• An indirect probe of higgsino world at the CEPC
• Leptonic mono-top from single stop production at LHC
• Tagging a mono-top signature in Natural SUSY
• Polarization of top produced in particle decays in an arbitrary frame
• Gravitino vs Neutralino LSP at the LHC
• Mono-top Signature from Supersymmetric $t\bar{t}H$ Channel
• Radiative Corrections to Aid the Direct Detection of the Higgsino-like Neutralino Dark Matter: Spin-Independent Interactions
• SUSY effects in $R_b$: revisited under current experimental constraints
• Resonant Higgs pair production as a probe of stop at the LHC
• Status of Natural Supersymmetry from the GmSUGRA in Light of the current LHC Run-2 and LUX data
• Searching for supersymmetry scalelessly
• The PeV-Scale Split Supersymmetry from Higgs Mass and Electroweak Vacuum Stability
• The Right-Handed Slepton Bulk Region for Dark Matter in Generalized No-scale $\mathcal{F}$-$SU(5)$ with Effective Super-Natural Supersymmetry
• Resolving a challenging supersymmetric low-scale seesaw scenario at the ILC
• Mono-b events from single stop production at the HL-LHC and HE-LHC
• Constraining Stealth SUSY with illuminated fat jets at the LHC