Limits on Four-Top Production from the ATLAS Same-sign Top-quark Search

Abstract

We repurpose the recent ATLAS search for same-sign top quarks in data with 1.0 fb${}^{-1}$ in the context of a search for production of four top quarks. Using the null results of that search, we place limits on the four-top-quark production cross section of about 1 pb. These limits are larger than the expected Standard Model rate for four-top-quark production, but are already strong enough to place interesting constraints on models which enhance that rate. We interpret these results in the context of models in which the right-handed top quark is composite and find limits on the compositeness scale of about 700 GeV.

arXiv comment4 pages, 4 figures

References in corpus (24)

• A Large Mass Hierarchy from a Small Extra Dimension
• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• MadGraph 5 : Going Beyond
• RS1, Custodial Isospin and Precision Tests
• Holography and Phenomenology
• Towards a Realistic Model of Higgsless Electroweak Symmetry Breaking
• LHC Signals from Warped Extra Dimensions
• The Bulk RS KK-gluon at the LHC
• A Model of Strong Flavor Dynamics for the Top Quark
• Top Quark Compositeness: Feasibility and Implications
• Topflavor: A Separate SU(2) for the Third Family
• A Heavy Top Quark and the $Zb\bar{b}$ Vertex in Non-Commuting Extended Technicolor
• Color-octet scalars at the LHC
• Top Compositeness at the Tevatron and LHC
• Manifestations of Top Compositeness at Colliders
• Kaluza-Klein Gluons as a Diagnostic of Warped Models
• Effects of Top Compositeness
• Four tops on the real projective plane at LHC
• Top Channel for Early SUSY Discovery at the LHC
• Four tops and the t tbar forward-backward asymmetry
• Toptet
• Effects of Top-quark Compositeness on Higgs Boson Production at the LHC
• Patterns of Custodial Isospin Violation from a Composite Top

Cited by in corpus (9)

• Four Tops for LHC
• Cornering sgluons with four-top-quark events
• New Higgs Production Mechanism in Composite Higgs Models
• Top-philic heavy resonances in four-top final states and their EFT interpretation
• Probing $tt\gamma$ and $ttZ$ couplings at the LHeC
• Probing Top-philic New Physics via Four-Top-Quark Production
• Single top production at linear $e^{-}{e}^{+}$ colliders
• Boosting Beyond: A Novel Approach to Probing Top-Philic Resonances at the LHC
• Searching for top-philic heavy resonances in boosted four-top final states