Experimental probes of axions
arXiv:1009.4718
Abstract
Experimental searches for axions or axion-like particles rely on semiclassical phenomena resulting from the postulated coupling of the axion to two photons. Sensitive probes of the extremely small coupling constant can be made by exploiting familiar, coherent electromagnetic laboratory techniques, including resonant enhancement of transitions using microwave and optical cavities, Bragg scattering, and coherent photon-axion oscillations. The axion beam may either be astrophysical in origin as in the case of dark matter axion searches and solar axion searches, or created in the laboratory from laser interactions with magnetic fields. This note is meant to be a sampling of recent experimental results.
6 pages, 7 figures, proceedings of XXIX Physics in Collision Conference, Kobe, Japan, August 30-September 2, 2009. An incorrect file was accidentally submitted as V1. V2 is the version in the actual proceedings. Difference: axion-fermion scattering is always suppressed by the Yukawa coupling m_f/f_a. High kinetic energies do not overcome this suppression
References in corpus (6)
- Evidence for a new light spin-zero boson from cosmological gamma-ray propagation?
- Probing eV-scale axions with CAST
- The Milky Way as a Kiloparsec-Scale Axionscope
- Detecting Axion-Like Particles With Gamma Ray Telescopes
- Effects of Axion-Photon Mixing on Gamma-Ray Spectra from Magnetized Astrophysical Sources
- Detailed design of a resonantly-enhanced axion-photon regeneration experiment