Revisiting the gluino mass limits in the pMSSM in the light of the latest LHC data and Dark Matter constraints

Abstract

The purpose of this paper is to examine the model dependence of the stringent constraints on the gluino mass obtained from the Large Hadron Collider (LHC) experiments by analyzing the Run II data using specific simplified models based on several ad hoc sparticle spectra which cannot be realized even in the fairly generic pMSSM models. We first revisit the bounds on the gluino mass placed by the ATLAS collaboration using the $1l + jets + \met$ data. We show that the exclusion region in the $M_{\tilde{g}}-M_{{\tilde{\chi }}_1^0}$ plane in the pMSSM scenario sensitively depends on the mass hierarchy between the left and right squarks and composition of the lighter electroweakinos and, to a lesser extent, other parameters. Most importantly, for higgsino type lighter electroweakinos (except for the LSP), the bound on the gluino mass from this channel practically disappears. However, if such models are confronted by the ATLAS $jets + \met$ data, fairly strong limits are regained. Thus in the pMSSM an analysis involving a small number of channels may provide more reliable mass limits. We have also performed detailed analyses on neutralino dark matter (DM) constraints in the models we have studied and have found that for a significant range of LSP masses, the relic density constraints from the WMAP/PLANCK data are satisfied and LSP-gluino coannihilation plays an important role in relic density production. We have also checked the simultaneous compatibility of the models studied here with the direct DM detection, and the LHC constraints.

arXiv comment34 pages LaTex, comments are welcome

References in corpus (88)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• Particle Dark Matter: Evidence, Candidates and Constraints
• Supersymmetric Dark Matter
• Parton distributions with LHC data
• A Supersymmetry Primer
• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• Results from a search for dark matter in the complete LUX exposure
• H0LiCOW XIII. A 2.4% measurement of $H_0$ from lensed quasars: $5.3\sigma$ tension between early and late-Universe probes
• Towards High-Precision Predictions for the MSSM Higgs Sector
• Focus Points and Naturalness in Supersymmetry
• The Soft Supersymmetry-Breaking Lagrangian: Theory and Applications
• Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter
• On the local dark matter density
• Neutralino-Nucleon Scattering Revisited
• Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states
• Precise determination of the neutral Higgs boson masses in the MSSM
• Merging Multi-leg NLO Matrix Elements with Parton Showers
• Naturalness and the Status of Supersymmetry
• Measuring and Understanding the Universe
• Neutralino Dark Matter at 14 and 100 TeV
• Dark matter, the CMSSM and lattice QCD
• Search for squarks and gluinos in final states with jets and missing transverse momentum using 36 fb${}^{-1}$ of $\sqrt{s}$=13 TeV $pp$ collision data with the ATLAS detector
• Search for new phenomena in events with an energetic jet and missing transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Nucleon sigma term and strange quark content from lattice QCD with exact chiral symmetry
• Search for supersymmetry at $\sqrt{s}=13$ TeV in final states with jets and two same-sign leptons or three leptons with the ATLAS detector
• How low can SUSY go? Matching, monojets and compressed spectra
• WMAPing the Universe: Supersymmetry, Dark Matter, Dark Energy, Proton Decay and Collider Physics
• Recasting direct detection limits within micrOMEGAs and implication for non-standard Dark Matter scenarios
• SUSY Simplified Models at 14, 33, and 100 TeV Proton Colliders
• Search for squarks and gluinos in final states with jets and missing transverse momentum at $\sqrt{s}=$ 13 TeV with the ATLAS detector
• Compressed supersymmetry after 1/fb at the Large Hadron Collider
• Gluino Coannihilation Revisited
• Gluino NLSP, Dark Matter via Gluino Coannihilation, and LHC Signatures
• Astrophysical uncertainties on the local dark matter distribution and direct detection experiments
• Search for direct pair production of a chargino and a neutralino decaying to the 125 GeV Higgs boson in $\sqrt{s}$ = 8 TeV pp collisions with the ATLAS detector
• XENON100 Implications for Naturalness in the MSSM, NMSSM and lambda-SUSY
• Uncertainties in WIMP Dark Matter Scattering Revisited
• Revisiting Type-II see-saw: Present Limits and Future Prospects at LHC
• Search for supersymmetry in final states with missing transverse momentum and multiple $b$-jets in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Global analysis of the pMSSM in light of the Fermi GeV excess: prospects for the LHC Run-II and astroparticle experiments
• Gluino Annihilations and Neutralino Dark Matter
• Search for pair production of gluinos decaying via stop and sbottom in events with $b$-jets and large missing transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Complementarity of Dark Matter Searches in the pMSSM
• The Electroweak Sector of the pMSSM in the Light of LHC - 8 TeV and Other Data
• Quantifying Astrophysical Uncertainties on Dark Matter Direct Detection Results
• Search for squarks and gluinos in final states with same-sign leptons and jets using 139 fb${}^{-1}$ of data collected with the ATLAS detector
• Scenarios for Gluino Coannihilation
• Reduced LHC constraints for higgsino-like heavier electroweakinos
• Gaugino coannihilations
• Particle Dark Matter - A Theorist's Perspective
• Search for pair production of vector-like T and B quarks in single-lepton final states using boosted jet substructure in proton-proton collisions at sqrt(s) = 13 TeV
• Many faces of low mass neutralino dark matter in the unconstrained MSSM, LHC data and new signals
• Mixed Neutralino Dark Matter in Nonuniversal Gaugino Mass Models
• Search for squarks and gluinos in events with an isolated lepton, jets, and missing transverse momentum at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Search for new phenomena in final states with $b$-jets and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• How light a higgsino or a wino dark matter can become in a compressed scenario of MSSM
• Deriving the velocity distribution of Galactic Dark Matter particles from rotation curve data
• Search for gluinos in events with an isolated lepton, jets and missing transverse momentum at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Compressed SUSY at 14 TeV LHC
• Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using $\sqrt{(}s)=13$ TeV proton$-$proton collisions recorded by ATLAS in Run 2 of the LHC
• Theoretical uncertainty of the supersymmetric dark matter relic density from scheme and scale variations
• Search for new phenomena using the invariant mass distribution of same-flavour opposite-sign dilepton pairs in events with missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Higgsino Dark Matter in the MSSM
• Non-zero trilinear parameter in the mSUGRA model - dark matter and collider signals at Tevatron and LHC
• New limits on top squark NLSP from ATLAS 4.7 $f{b}^{-1}$ data
• Higgs funnel region of SUSY dark matter for small $\tan \beta$ and renormalization group effects on pseudoscalar Higgs boson with scalar mass non-universality
• Search for squarks and gluinos in final states with one isolated lepton, jets, and missing transverse momentum at $\sqrt{s}=13$ TeV with the ATLAS detector
• Sensitivity of IceCube-DeepCore to neutralino dark matter in the MSSM-25
• Implications of CDMS II result on Higgs sector in the MSSM
• Looking for a heavy wino LSP in collider and dark matter experiments
• Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum using $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Using Tau Polarization to probe the Stau Co-annihilation Region of mSUGRA Model at LHC
• Constraints on Supersymmetry from LHC data on SUSY searches and Higgs bosons combined with cosmology and direct dark matter searches
• Assessing Consistency Between WMAP 9-year and Planck 2015 Temperature Power Spectra
• SUSY-QCD corrections for the direct detection of neutralino dark matter and correlations with the relic density
• Compressed SUSY search at the 13 TeV LHC using kinematic correlations and structure of ISR jets
• Probing the light Higgs pole resonance annihilation of dark matter in the light of XENON100 and CDMS-II observations
• Predictions of a Natural SUSY Dark Matter Model for Direct and Indirect Detection Experiments
• Where is SUSY?
• Status of searches for electroweak-scale supersymmetry after LHC Run 2
• The past, present and future of the heavier electroweakinos in the light of LHC and other data
• Multilepton signals of heavier electroweakinos at the LHC
• New Limits on Heavier Electroweakinos and their LHC Signatures
• Gluino mass limits with sbottom NLSP in coannihilation scenarios
• Minimal and non-minimal Universal Extra Dimension models in the light of LHC data at 13 TeV
• Non-universal SUGRA at LHC: Prospects and Discovery Potential
• Probing Bino-Gluino Coannihilation at the LHC