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arXiv · 2408.11588

Exploring Axion-Like Particle Couplings through Single Top $tW$-Channel and Top Pair Production at the LHC

Yasaman Hosseini·Mojtaba Mohammadi Najafabadi
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Abstract

In this paper, we explore the interactions between light axion-like particles (ALPs) and top quarks, gluons, and W-bosons. Utilizing high-energy probes at the LHC, we probe these couplings in the context of single top quark production associated with a W-boson and an ALP. We analyze the latest LHC Run II data on $t\bar{t}$ spin correlation measurements to establish constraints on these couplings. Additionally, we compare these constraints with those derived from loop-induced couplings and indirect searches involving B-meson decays. Furthermore, we derive two-dimensional limits on the ALP couplings with top quarks and gluons.

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Yasaman Hosseini, Mojtaba Mohammadi Najafabadi. 2024-08-21. Exploring Axion-Like Particle Couplings through Single Top $tW$-Channel and Top Pair Production at the LHC. https://doi.org/10.1103/physrevd.110.055026

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