Axion-like ALPs

Abstract

The Effective Field Theory (EFT) Lagrangian for a generic axion-like particle (ALP) has many free parameters, and leaves quite some freedom for the expected phenomenology. In this work, we set up more constrained EFTs by enforcing true axion-like properties for the ALP. Indeed, though the Peccei-Quinn symmetry of the QCD axion is anomalous, it is so in specific ways, and this shows up as consistency conditions between the gauge boson and fermion couplings. We propose to enforce such conditions, as inspired from the DFSZ and KSVZ scenarios, on the generic ALP EFTs. These truly axion-like ALP EFTs are then particularly well-suited as benchmark scenarios, to be used in the search for ALPs both at colliders and at low-energy experiments.

23 pages, 6 figures. References and a new appendix added, together with minor changes. Version accepted for publication at JHEP

References in corpus (8)

• Collider Probes of Axion-Like Particles
• A fresh look at ALP searches in fixed target experiments
• Axion-like particles as mediators for dark matter: beyond freeze-out
• Nonresonant Searches for Axion-Like Particles in Vector Boson Scattering Processes at the LHC
• Dynamical Minimal Flavour Violating Inverse Seesaw
• ALP Searches at the LHC: FASER as a Light Shining through Walls Experiment
• Unitarity constraints on ALP interactions
• Anomalies from an effective field theory perspective

Cited by in corpus (12)

• Phenomenology of axion-like particles with universal fermion couplings -- revisited
• Electroweak precision test of axion-like particles
• A global analysis of axion-like particle interactions using SMEFT fits
• Investigation of the concurrent effects of ALP-photon and ALP-electron couplings in Collider and Beam Dump Searches
• Precise tests of the axion coupling to tops
• ALPs and HNLs at LHC and Muon Colliders: Uncovering New Couplings and Signals
• Interplay of ALP Couplings at a Muon Collider
• Visible GeV ALP from TeV Vector-like Leptons
• Axion Portal to Scalar Dark Matter: Unveiling Stabilizing Symmetry Footprints
• Search for dark matter produced in association with a dark Higgs boson in the $b\bar{b}$ final state using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Constraints on Axion-Like Particles from VERITAS Observations of a Flaring Radio Galaxy in the Perseus Cluster
• Prospects for sub-EW-scale ALP searches via $\gamma +b\bar{b}$ signatures at the LHC using jet substructure techniques