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.

4 pages, 4 figures

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Cited by in corpus (5)

• Four Tops for LHC
• Top-philic heavy resonances in four-top final states and their EFT interpretation
• Probing Top-philic New Physics via Four-Top-Quark Production
• 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