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arXiv · 2601.05282

EFT results in the top quark sector in CMS

Andrea Piccinelli
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Abstract

The CMS programme of indirect searches in the top-quark sector interprets precision measurements in the Standard Model Effective Field Theory (SMEFT) framework. These proceedings summarize recent CMS results highlighted in the TOP2025 talk: a search for CP violation in ttZ and tZq production using CP-odd observables constructed with physics-informed machine learning, a measurement that disentangles the flavour structure of electroweak SMEFT couplings in multilepton final states, and a Run 2 combination of complementary top+X measurements. We close with a brief outlook on the expected sensitivity gains at the high-luminosity LHC.

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Andrea Piccinelli. 2026-01-06. EFT results in the top quark sector in CMS. https://arxiv.org/abs/2601.05282

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