Axion-like particles from soft supersymmetry breaking

Abstract

We study a supersymmetric effective field theory in which the mass of an axion-like particle (ALP) is generated predominantly by soft supersymmetry-breaking effects. The Peccei--Quinn symmetry is exact in the supersymmetric limit and is explicitly broken only by soft terms induced by supergravity, leading to a naturally heavy ALP whose mass is controlled by the supersymmetry-breaking scale. We analyze the resulting ALP, saxion, and axino spectrum and investigate the phenomenological implications for laboratory searches, astrophysical observations, and cosmology. The framework is treated as an effective field theory without specifying a unique ultraviolet completion, and no attempt is made to explain the origin of a small strong CP phase, which is assumed to be suppressed by ultraviolet physics or by an independent mechanism. Instead, the focus is on the generic and testable phenomenology of heavy axion-like particles whose masses arise from supersymmetry breaking.

20 pages, 10 Figures, 9 Tables, accepted for publication in Journal of High Energy Physics

References in corpus (26)

• The Low-Energy Frontier of Particle Physics
• Big Bang Nucleosynthesis: 2015
• New CAST Limit on the Axion-Photon Interaction
• Symmetries and Strings in Field Theory and Gravity
• Big-Bang Nucleosynthesis and Hadronic Decay of Long-Lived Massive Particles
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• New experimental approaches in the search for axion-like particles
• Experimental Searches for the Axion and Axion-like Particles
• The landscape of QCD axion models
• Astrophysical Axion Bounds
• Planck-Scale Physics and the Peccei-Quinn Mechanism
• The Characterization of the Gamma-Ray Signal from the Central Milky Way: A Compelling Case for Annihilating Dark Matter
• Solutions to the strong CP problem in a world with gravity
• Revisiting the SN1987A gamma-ray limit on ultralight axion-like particles
• CMB bounds on disk-accreting massive Primordial Black Holes
• Photoproduction of axion-like particles
• Dark matter in the Kim-Nilles mechanism
• Missing energy signature from invisible decays of dark photons at the CERN SPS
• On the Sensitivity of Spin-Precession Axion Experiments
• Complete one-loop effects of SUSY QCD in $b\bar{b}h$ production at the LHC under current experimental constraints
• Correlation functions with fusion-channel multiplicity in W3 Toda field theory
• Updated global fit of the aligned two-Higgs-doublet model with heavy scalars
• Observation of ${\eta }^{\prime }\to {\pi }^{+}{\pi }^{-}{\mu }^{+}{\mu }^{-}$
• Lepton flavor violation in supersymmetric B-L extension of the standard model
• Constraining Axion-Like Particles Dark Matter in Coma Berenices with FAST
• Higher order gravities and the Strong Equivalence Principle