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arXiv · 2412.06506

Top observables as precise probes of the ALP

Anh Vu Phan
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Abstract

Measurements of the top quark by the ATLAS and CMS experiments go beyond testing the Standard Model (SM) with high precision. Axion-like particles (ALPs), a potential SM extension involving new pseudoscalar particles, exhibit strong interactions with heavy SM fermions. Consequently, they can significantly affect the kinematic distributions of top quarks in top-antitop pair production. Moreover, such strong interactions can induce other ALP couplings at low energies, leading to a rich phenomenology. We summarize recent developments in probing the ALP-top coupling and use LHC data from run 2 to constrain the ALP parameter space.

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Anh Vu Phan. 2024-12-09. Top observables as precise probes of the ALP. https://doi.org/10.21468/scipostphysproc.18.022

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