“School of Particles And Accelerator”

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Paper   IPM / Particles And Accelerator / 17872
School of Particles and Accelerator
  Title:   Exploring Axion-Like Particle Couplings through Single Top $tW$-Channel and Top Pair Production at the LHC
  Author(s): 
1.  Y Hosseini
2.  M Mohammadi Najafabadi
  Status:   Submitted
  Journal:
  Year:  2024
  Supported by:  IPM
  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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