Scalar versus fermionic top partner interpretations of searches at the LHC
arXiv:1607.02050 · doi:10.1007/JHEP11(2016)107
Abstract
We assess how different ATLAS and CMS searches for supersymmetry in the final state at Run 1 of the LHC constrain scenarios with a fermionic top partner and a dark matter candidate. We find that the efficiencies of these searches in all-hadronic, 1-lepton and 2-lepton channels are quite similar for scalar and fermionic top partners. Therefore, in general, efficiency maps for stop-neutralino simplified models can also be applied to fermionic top-partner models, provided the narrow width approximation holds in the latter. Owing to the much higher production cross-sections of heavy top quarks as compared to stops, masses up to GeV can be excluded from the Run 1 stop searches. Since the simplified-model results published by ATLAS and CMS do not extend to such high masses, we provide our own efficiency maps obtained with CheckMATE and MadAnalysis 5 for these searches. Finally, we also discuss how generic gluino/squark searches in multi-jet final states constrain heavy top partner production.
arXiv comment39 pages, 8 figures, 17 tables. Version accepted by JHEP. Efficiency maps derived for this paper can be downloaded from http://lpsc.in2p3.fr/projects-th/recasting/susy-vs-vlq/ttbarMET
References in corpus (49)
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- PYTHIA 6.4 Physics and Manual
- PYTHIA 6.2 Physics and Manual
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- FastJet user manual
- New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
- FeynRules 2.0 - A complete toolbox for tree-level phenomenology
- MadGraph 5 : Going Beyond
- A Supersymmetry Primer
- Dispelling the N^3 myth for the Kt jet-finder
- Bounds on Universal Extra Dimensions
- Is the Lightest Kaluza-Klein Particle a Viable Dark Matter Candidate?
- Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation
- Stop Production at Hadron Colliders
- Threshold resummation for squark-antisquark and gluino-pair production at the LHC
- Little Hierarchy, Little Higgses, and a Little Symmetry
- Squark and gluino hadroproduction
- Soft-gluon resummation for squark and gluino hadroproduction
- Phenomenology of the Littlest Higgs with T-Parity
- Search for top-squark pair production in the single-lepton final state in pp collisions at sqrt(s) = 8 TeV
- T Parity and the Littlest Higgs
- Supersymmetric top and bottom squark production at hadron colliders
- Electroweak Precision Constraints on the Littlest Higgs Model with T Parity
- Designing and recasting LHC analyses with MadAnalysis 5
- Towards a public analysis database for LHC new physics searches using MadAnalysis 5
- SModelS: a tool for interpreting simplified-model results from the LHC and its application to supersymmetry
- Discrimination of Supersymmetry and Universal Extra Dimensions at Hadron Colliders
- Distinguishing Spins in Supersymmetric and Universal Extra Dimension Models at the Large Hadron Collider
- ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
- Top Partners in Little Higgs Theories with T-parity
- A Dark Matter candidate from Lorentz Invariance in 6 Dimensions
- Polarized Tops from Stop Decays at the LHC
- Top Quark Pair plus Large Missing Energy at the LHC
- Framework for Model Independent Analyses of Multiple Extra Quark Scenarios
- Study of the top reconstruction in top-partner events at the LHC
- Fermion polarization in sfermion decays as a probe of CP phases in the MSSM
- Top-philic Scalar Dark Matter with a Vector-like Fermionic Top Partner
- Measuring Top Quark Polarization in Top Pair plus Missing Energy Events
- Top Polarization in Stop Production at the LHC
- Impact of Single-Top Measurement to Littlest Higgs Model with T-Parity
- Search for Production of Heavy Particles Decaying to Top Quarks and Invisible Particles in collisions at TeV
- Top Polarization and Stop Mixing from Boosted Jet Substructure
- Search for New Particles in Final States with Large Jet Multiplicities and Missing Transverse Energy in ppbar Collisions at sqrt(s) = 1.96 TeV
- Constraints on sneutrino dark matter from LHC Run 1
- XQCAT: eXtra Quark Combined Analysis Tool
- ttbar+Large missing energy from top-quark partners: a comprehensive study at NLO QCD
- Simplified models for same-spin new physics scenarios
- Is polarization effect visible in leptonic SUSY searches?
Cited by in corpus (22)
- Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
- SModelS v1.1 user manual
- Constraining new physics with SModelS version 2
- Common exotic decays of top partners
- Charged Composite Scalar Dark Matter
- Searching for Dark Photons with Maverick Top Partners
- Top-philic Vector-Like Portal to Scalar Dark Matter
- Production of extra quarks decaying to Dark Matter beyond the Narrow Width Approximation at the LHC
- Exotic Signals of Vectorlike Quarks
- Roadmap to explore vectorlike quarks decaying to a new scalar or pseudoscalar
- Hunting for top partner with a new signature at the LHC
- On the coverage of the pMSSM by simplified model results
- Discovery prospects of a vectorlike top partner decaying to a singlet boson
- Machine learning-enhanced search for a vectorlike singlet quark decaying to a singlet scalar or pseudoscalar
- Exploring maverick top partner decays at the LHC
- The LHC potential of Vector-like quark doublets
- Composite dark matter phenomenology in the presence of lighter degrees of freedom
- Characterising Dark Matter Interacting with Extra Charged Leptons
- Complementarity of Resonant Scalar, Vector-Like Quark and Superpartner Searches in Elucidating New Phenomena
- LHC Dark Matter Signals from Vector Resonances and Top Partners
- Dark top partner
- Machine learning tagged boosted dark photon: A signature of fermionic portal matter at the LHC