CAST results and Axion review
T. Geralis (for the CAST collaboration)
TL;DR
This paper reviews recent experimental results from CAST and ADMX on axion searches, highlighting their current limits and future prospects across different axion mass ranges.
Contribution
It provides the latest results from CAST and ADMX, compares their sensitivities, and discusses future experimental plans for axion detection.
Findings
CAST set the most stringent limit on axion-photon coupling up to 0.64 eV
ADMX is the most competitive in the micro-eV mass range
Future plans include surpassing the 1 eV WMAP limit and enhancing detector sensitivity.
Abstract
We present results from the CERN Axion Solar Telescope (CAST) and the Axion Dark Matter eXperiment (ADMX), together with a brief review on prospects on Axion searches with a variety of experimental techniques. CAST has explored masses up to 0.64 eV setting the most stringent limit on the axion-photon coupling, apart for the micro-eV region where ADMX is the most competitive experiment. CAST is aiming at surpassing the 1eV WMAP upper limit and possibly revisiting the operation in vacuum with extra sensitive X-ray detectors, while ADMX, using improved extra sensitive SQUID amplifiers will explore the micro-eV mass range.
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Taxonomy
TopicsDark Matter and Cosmic Phenomena