Dark axion portal at $Z$ boson factories

Abstract

Dark axion portal connects an axion-like-particle (ALP), which can be the QCD axion, with the SM by the coupling to a photon and a dark photon, leading to a rich and distinct phenomenology related to dark matter, astrophysics, and cosmology. We note that due to the gauge invariance, the $Z$ boson-dark photon-ALP coupling should also be generated with sizable strength, and we study its phenomenological consequences at $Z$ boson factories: LEP, FCC-ee, and forward physics detectors at the LHC and FPF@FCC - FASER and MATHUSLA. Due to the large number of $Z$ bosons produced, DAP particles can be efficiently produced and detected by semi-visible displaced decays of the heavier DS species to $\gamma$+inv. or $f^{+}{f}^{-}$+inv., and via missing energy signature with zero or one photon. Because of the complementarity of the two approaches, we find great prospects in exploring both short and long-lived lifetime regimes of DAP, especially when the heavier dark species has mass above $0.1$GeV.

arXiv comment11 pages, 4 figures

References in corpus (23)

• Cosmological Relaxation of the Electroweak Scale
• Collider Probes of Axion-Like Particles
• Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
• New Detectors to Explore the Lifetime Frontier
• Axion-Like Particles at Future Colliders
• Photon Events with Missing Energy in e+e- Collisions at sqrt{s} = 130 to 209 GeV
• FORESEE: FORward Experiment SEnsitivity Estimator for the LHC and future hadron colliders
• Cosmic infrared background excess from axion-like particles and implications for multi-messenger observations of blazars
• Dynamics of the cosmological relaxation after reheating
• Implications of the dark axion portal for the muon g-2, B-factories, fixed target neutrino experiments and beam dumps
• Dark photon relic dark matter production through the dark axion portal
• Implications of the dark axion portal for SHiP and FASER and the advantages of monophoton signals
• Cosmological Relaxation through the Dark Axion Portal
• Supernova constraints on an axion-photon-dark photon interaction
• Distinguishing Dirac and Majorana Heavy Neutrinos at Lepton Colliders
• New searches at the reactor experiments based on the dark axion portal
• Probing active-sterile neutrino transition magnetic moments at LEP and CEPC
• Mini Force: the (B-L) + xY gauge interaction with a light mediator
• Search for the dipole portal of heavy neutral leptons at future colliders
• Probing some photon portals to new physics at intensity frontier experiments
• Axion mediated photon to dark photon mixing
• Neutrino dipole portal at electron colliders
• Adiabatic Conversion of ALPs into Dark Photon Dark Matter

Cited by in corpus (4)

• Freezing-in the Pure Dark Axion Portal
• Probing displaced (dark)photons from low reheating freeze-in at the LHC
• Resonant ALP-Portal Dark Matter Annihilation as a Solution to the $B^{\pm }\to K^{\pm }\nu \bar{\nu }$ Excess
• Exploring the dark axion portal in the LUXE-NPOD experiment