QCD Axion from a Higher Dimensional Gauge Field Theory

2003/08/04 by Kiwoon Choi · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1103/physrevlett.92.101602

published as Phys.Rev.Lett. 92 (2004) 101602 · 5 pages, Revtex4

arxiv created 2003/08/04 · openalex publication_date 2004/03/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

We point out that a QCD axion solving the strong CP problem can arise naturally from a parity-odd gauge field in five-dimensional (5D) orbifold field theory. The required axion coupling to the QCD anomaly comes from the 5D Chern-Simons coupling, and all other unwanted U(1)PQ breaking axion couplings can be avoided naturally by the 5D gauge symmetry and locality. If the fifth dimension is warped, the resulting axion scale is suppressed by a small warp factor compared to the Planck scale, thereby the model can generate naturally an intermediate axion scale fa = 10(10)-10(12) GeV.

Citations

• A simple solution to the strong CP problem with a harmless axion
• Large Mass Hierarchy from a Small Extra Dimension
• String or M theory axion as a quintessence

Cited by

• Axion arising from warped extra-dimensional gauge fields
• PhD Thesis: String theory in the early universe