An improved limit on the axion–photon coupling from the CAST experiment

2007/02/28 by S. Andriamonje, CAST Collaboration, S. Aune +59 · 5 citations
Physics and Astronomy · #Axion #Cosmology and Gravitation Theories #Coupling (piping) #Dark Matter and Cosmic Phenomena #Dark matter #Limit (mathematics) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Quantum electrodynamics #Quantum mechanics #Theoretical physics #astro-ph #hep-ex

paper · pdf · doi:10.1088/1475-7516/2007/04/010

published as JCAP 0704:010,2007 · 24 pages, 8 figures, 1 table, to be submitted to JCAP; v2: minor changes in the exclusion plot; v3: minor changes to match accepted version

arxiv created 2007/03/23 · openalex publication_date 2007/04/17 · arxiv updated 2012/08/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We have searched for solar axions or similar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) set-up with improved conditions in all detectors. From the absence of excess x-rays when the magnet was pointing to the Sun, we set an upper limit on the axion–photon coupling of g aγ <8.8 × 10 −11 GeV −1 at 95% CL for . This result is the best experimental limit over a broad range of axion masses and for also supersedes the previous limit derived from energy-loss arguments on globular cluster stars.

Citations

• Production and Detection of Axion-Like Particles at the VUV-FEL: Letter of Intent
• A model solving the PVLAS-CAST puzzle
• The Micromegas detector of the CAST experiment
• Helioseismological constraint on solar axion emission
• Dark Matter and Dark Energy from the Solution of the StrongCPProblem
• Results from a High-Sensitivity Search for Cosmic Axions
• A simple solution to the strong CP problem with a harmless axion
• Experimental Search for Solar Axions via Coherent Primakoff Conversion in a Germanium Spectrometer
• Photon Regeneration from Pseudoscalars at X-Ray Laser Facilities
• Production and detection of very light bosons in the HERA tunnel
• The Hierarchy Problem and New Dimensions at a Millimeter
• Search for solar axions using7Li
• Search for solar axions using Fe
• Measurement of the Total Active 8B Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity
• The x-ray telescope of CAST
• A decommissioned LHC model magnet as an axion telescope
• Review of Particle Physics
• Dark Matter and Dark Energy from the solution of the strong CP problem
• Review of Particle Physics
• Quark masses

Cited by

• Future CMB constraints on cosmic birefringence and implications for fundamental physics
• Dark matter and fundamental physics with the Cherenkov Telescope Array
• Axion astrophysics
• Search for Axionlike Particles Using a Variable-Baseline Photon-Regeneration Technique
• THE MYSTERY OF THE COSMIC DIFFUSE ULTRAVIOLET BACKGROUND RADIATION