Precise tests of the axion coupling to tops

Abstract

We present an in-depth analysis of axions and axion-like particles in top-pair production at the LHC. Our main goal is to probe the axion coupling to top quarks at high energies. To this end, we calculate the top-antitop cross section and differential distributions including ALP effects up to one-loop level. By comparing these predictions with LHC precision measurements, we constrain the top coupling of axion-like particles with masses below the top-antitop threshold. Our results apply to all UV completions of the ALP effective theory with dominant couplings to top quarks, in particular to DFSZ-like axion models.

27 pages, 7 figures

References in corpus (22)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• LHAPDF6: parton density access in the LHC precision era
• Parton distributions from high-precision collider data
• Top++: a program for the calculation of the top-pair cross-section at hadron colliders
• The landscape of QCD axion models
• Collider Probes of Axion-Like Particles
• A New Approach to a Global Fit of the CKM Matrix
• Probing the Standard Model with Higgs signal rates from the Tevatron, the LHC and a future ILC
• The Low-Energy Effective Theory of Axions and ALPs
• Flavor probes of axion-like particles
• Quark Flavor Phenomenology of the QCD Axion
• Top pair invariant mass distribution: a window on new physics
• Power-enhanced leading-logarithmic QED corrections to $B_q\to {\mu }^{+}{\mu }^{-}$
• Multi-lepton Signatures of a Hidden Sector in Rare B Decays
• Running in the ALPs
• Top Quark Pairs at High Invariant Mass - A Model-Independent Discriminator of New Physics at the LHC
• Non-Resonant Searches for Axion-Like Particles at the LHC
• Minimal Flavor Violation with Axion-like Particles
• Top-antitop and Top-top Resonances in the Dilepton Channel at the CERN LHC
• Displaced or invisible? ALPs from $B$ decays at Belle II
• Axion-like ALPs
• Top Secrets: Long-Lived ALPs in Top Production

Cited by in corpus (6)

• Quark flavor violation and axion-like particles from top-quark decays at the LHC
• Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactions
• ALP-ine quests at the LHC: hunting axion-like particles via peaks and dips in $t\bar{t}$ production
• Exploring Axion-Like Particle Couplings through Single Top $tW$-Channel and Top Pair Production at the LHC
• Prospects for detecting the couplings of axion-like particle with neutrinos at the CEPC
• Top observables as precise probes of the ALP