Searching for top-philic heavy resonances in boosted four-top final states
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866917087583141888 |
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| author | Darmé, Luc Fuks, Benjamin Li, Hao-Lin Maltoni, Matteo Touchèque, Julien |
| author_facet | Darmé, Luc Fuks, Benjamin Li, Hao-Lin Maltoni, Matteo Touchèque, Julien |
| contents | New heavy resonances with sizeable couplings to top quarks can be probed through searches for beyond-the-Standard-Model effects in four-top production at the LHC. In this work, we present the first next-to-leading-order QCD predictions for the full on-shell and off-shell production of four-top events via new electroweak singlet states, along with dedicated analysis strategies based on the reconstruction and tagging of all final-state top quarks. We develop a detector-level simulation incorporating recent advances in top-tagging and boosted object reconstruction. Moreover, we demonstrate that searches at LHC Run 3 and high-luminosity phase in the zero-lepton, one-lepton and same-sign di-lepton channels can improve the sensitivity to the new physics cross sections by up to two orders of magnitude. In particular, colour-octet resonances with masses up to 2-2.5 TeV and colour-singlet states with masses up to 1-1.5 TeV are within reach for coupling values in the 0.1-1 range. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_05334 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Searching for top-philic heavy resonances in boosted four-top final states Darmé, Luc Fuks, Benjamin Li, Hao-Lin Maltoni, Matteo Touchèque, Julien High Energy Physics - Phenomenology High Energy Physics - Experiment New heavy resonances with sizeable couplings to top quarks can be probed through searches for beyond-the-Standard-Model effects in four-top production at the LHC. In this work, we present the first next-to-leading-order QCD predictions for the full on-shell and off-shell production of four-top events via new electroweak singlet states, along with dedicated analysis strategies based on the reconstruction and tagging of all final-state top quarks. We develop a detector-level simulation incorporating recent advances in top-tagging and boosted object reconstruction. Moreover, we demonstrate that searches at LHC Run 3 and high-luminosity phase in the zero-lepton, one-lepton and same-sign di-lepton channels can improve the sensitivity to the new physics cross sections by up to two orders of magnitude. In particular, colour-octet resonances with masses up to 2-2.5 TeV and colour-singlet states with masses up to 1-1.5 TeV are within reach for coupling values in the 0.1-1 range. |
| title | Searching for top-philic heavy resonances in boosted four-top final states |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2507.05334 |