Aspects of Axion Phenomenology in a slice of AdS_5

Abstract

Motivated by multi-throat considerations, we study the phenomenological implications of a bulk axion in a slice of AdS_5 with a large extra dimension: k~0.01 eV, kR > 1. In particular, we compare axion physics with a warped geometry to axions in flat compactifications. As in flat compactification scenarios, we find that the mass of the axion can become independent from the underlying Peccei-Quinn scale. Surprisingly, we find that in warped extra dimensions the axion's invisibility, cosmological viability, and basic phenomenology remain essentially unaltered in comparison to axions in flat compactifications.

25 pages, 9 figures

References in corpus (9)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Strong CP Problem and Axions
• The QCD Axion and Moduli Stabilisation
• The Ubiquitous Throat
• Warped Axions
• Field Theory on Multi-throat Backgrounds
• Modification of Decay Constants of Superstring Axions: Effects of Flux Compactification and Axion Mixing
• Production and detection of very light spin-zero bosons at optical frequencies

Cited by in corpus (12)

• Dynamical Dark Matter: II. An Explicit Model
• Low-Energy Signals from Kinetic Mixing with a Warped Abelian Hidden Sector
• Low-Energy Probes of a Warped Extra Dimension
• On The Warped Heterotic Axion
• A search for axion-like particles in light-by-light scattering at the CLIC
• Light Neutrinos from a Mini-Seesaw Mechanism in Warped Space
• The Holographic QCD Axion
• Neutrino Mass and $\mu \to e+\gamma$ from a Mini-Seesaw
• Broken Symmetry as a Stabilizing Remnant
• Extra-dimensional axion patterns
• Axion braneworld cosmology
• PhD Thesis: String theory in the early universe