Probing Light Stop Pairs at the LHC

Abstract

In this work, we study the light stop pair signals at the LHC. We explore the SUSY parameter space with non-universal gaugino and third generation masses at the GUT scale. Recent LHC SUSY search results based on 35pb${}^{-1}$ and 1fb${}^{-1}$ of data are implemented to put the limits on stop pair events. The dark matter relic density and direct detection constraints are also taken into account. Detailed simulations on the signals and background for some benchmark points are performed, and it is found that the stop pair signals usually escape the LHC search if the present cut conditions are used. We also explore the potential and sensitivity of ILC to probe such scenarios. It is found that the ILC can detect them with an integrated luminosity of a few tens of fb${}^{-1}$.

35pages, 13figures

References in corpus (35)

• PYTHIA 6.4 Physics and Manual
• micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
• Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions
• The Baryogenesis Window in the MSSM
• Searching for Directly Decaying Gluinos at the Tevatron
• Compressed supersymmetry and natural neutralino dark matter from top squark-mediated annihilation to top quarks
• Non-universal gaugino masses from non-singlet F-terms in non-minimal unified models
• Hunting for the Top Partner in the Littlest Higgs Model with T-parity at the LHC
• The Landscape of Sparticle Mass Hierarchies and Their Signature Space at the LHC
• Polarized Tops from Stop Decays at the LHC
• Light Stop Searches at the LHC in Events with One Hard Photon or Jet and Missing Energy
• Yukawa Unification and Neutralino Dark Matter in SU(4)_c \times SU(2)_L \times SU(2)_R
• The Effective Theory of the Light Stop Scenario
• Non-universal gaugino masses: a signal-based analysis for the Large Hadron Collider
• Boosted Semileptonic Tops in Stop Decays
• Light Stop NLSPs at the Tevatron and LHC
• Light Stop Decay in the MSSM with Minimal Flavour Violation
• Low Mass Gluino within the Sparticle Landscape, Implications for Dark Matter, and Early Discovery Prospects at LHC-7
• Light Stop Searches at the LHC in Events with two b-Jets and Missing Energy
• Interpreting the First CMS and ATLAS SUSY Results
• Collider Signature of T-quarks
• Study of the top reconstruction in top-partner events at the LHC
• Predictive Signatures of Supersymmetry: Measuring the Dark Matter Mass and Gluino Mass with Early LHC data
• Heavy-flavour tagging and the supersymmetry reach of the CERN Large Hadron Collider
• NLSP Gluino Search at the Tevatron and early LHC
• Impact of the recent results by the CMS and ATLAS Collaborations at the CERN Large Hadron Collider on an effective Minimal Supersymmetric extension of the Standard Model
• Non-universal gaugino and scalar masses, hadronically quiet trileptons and the Large Hadron Collider
• Phenomenology of Top Partners at the ILC
• Search for pair production of the scalar top quark in the electron-muon final state
• Non-universal scalar masses: a signal-based analysis for the Large Hadron Collider
• Right sneutrinos and the signals of a stable stop at the Large Hadron Collider
• Search for Top Squarks at Tevatron Inspired by Dark Matter and Electroweak Baryogenesis
• SUSY signals with small and large trilinear couplings at the LHC 7 TeV runs and neutralino dark matter
• Proton Stability and Dark Matter in a Realistic String MSSM
• On pair production of scalar top quarks in e+e- collisions at ILC and a possibility of their mass reconstruction

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• A SM-like Higgs near 125 GeV in low energy SUSY: a comparative study for MSSM and NMSSM
• NMSSM Higgs Benchmarks Near 125 GeV
• On Naturalness of the MSSM and NMSSM
• A Heavy SM-like Higgs and a Light Stop from Yukawa-Deflected Gauge Mediation
• Probing natural SUSY from stop pair production at the LHC
• Stops and MET: the shape of things to come
• How to Improve Top Tagging
• Many faces of low mass neutralino dark matter in the unconstrained MSSM, LHC data and new signals
• Natural Supersymmetry and Implications for Higgs physics
• Very Light Scalar Top Quarks at the LHC
• Searches for New Physics: Les Houches Recommendations for the Presentation of LHC Results
• The Higgs: so simple yet so unnatural
• Closing up a light stop window in natural SUSY at LHC
• Measuring Top Quark Polarization in Top Pair plus Missing Energy Events
• Detecting light stop pairs in coannihilation scenarios at the LHC
• Super-Razor and Searches for Sleptons and Charginos at the LHC
• Optimising Stop Naturalness
• Improving the sensitivity of stop searches with on-shell constrained invariant mass variables
• Single top squark production as a probe of natural supersymmetry at the LHC
• Natural NMSSM confronting with the LHC7-8
• Spot the stop with a b-tag
• Light Stops and Observation of Supersymmetry at LHC RUN-II
• The production and decay of the top partner $T$ in the left-right twin higgs model at the ILC and CLIC
• Automated third generation squark production to next-to-leading order
• Top jets as a probe of degenerate stop-NLSP LSP scenario in the framework of cMSSM
• Light stop/sbottom pair production searches in the NMSSM
• Light stop in the MSSM after LHC Run 1
• Non-universal SUGRA at LHC: Prospects and Discovery Potential
• Search for Heavy Stops with Merged Top-Jets
• Supersymmetry with a Heavy Lightest Supersymmetric Particle
• Light stop squarks and b-tagging