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Four-top quark physics at the LHC
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The production of four top quarks is a rare process in the Standard Model that provides unique opportunities and sensitivity to Standard Model observables including potential enhancement from many popular new physics extensions. This article summarises the latest experimental measurements of the four-top quark production cross section at the LHC. An overview of the interpretations of the experimental results in terms of the top quark Yukawa coupling and limits on physics beyond the Standard Model is also given as well as prospects for future measurements and opportunities offered by this challenging final state.
Forward citations
Cited by 3 Pith papers
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The inseparable three and four tops
Full-NLO predictions for tttW production, combined with tttt through a new window-removal prescription, give a joint inclusive rate more than 10% above the on-shell four-top prediction.
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Phenomenology of a Kinetic Higgs Portal
A momentum-dependent Higgs portal can hide invisible decays, make four-top production the most sensitive probe, and open a dark-matter region immune to direct detection.
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Harnessing Higgs Kinematics for HEFT Constraints
Reweighting Standard Model di-Higgs events with a momentum-dependent HEFT coupling gives expected Run 3 and HL-LHC constraints on a_22 and a_dd2, with four-top data helping to pin down a_22.
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