What is recorded here?
CAST used a solar-tracking magnet to search for axion-to-photon conversion. A 2012 helium-buffer run improved limits in selected mass regions near 0.2 and 0.4 eV. Its 2013–2015 vacuum run found no significant excess and reported a 95% upper coupling limit of 0.66 × 10⁻¹⁰ GeV⁻¹ for masses below about 0.02 eV.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
Both results depend on the assumed solar axion flux and conversion model, detector backgrounds and a Bayesian posterior with a flat prior in the fourth power of the coupling. The helium and vacuum mass regions and datasets differ; neither result is an axion detection or an exclusion of all masses. The vacuum-run limit accounts primarily for statistical fluctuations; the authors estimate systematic effects below 10% rather than independently proving they vanish.
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People and systems
M. Arik; S. Aune; K. Barth; V. Anastassopoulos
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged. The recorded author list is incomplete.
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English catalogue narrative
CAST searches for solar axions with helium-filled and vacuum helioscopes
CAST used a solar-tracking magnet to search for axion-to-photon conversion. A 2012 helium-buffer run improved limits in selected mass regions near 0.2 and 0.4 eV. Its 2013–2015 vacuum run found no significant excess and reported a 95% upper coupling limit of 0.66 × 10⁻¹⁰ GeV⁻¹ for masses below about 0.02 eV.
Scientific scope
Both results depend on the assumed solar axion flux and conversion model, detector backgrounds and a Bayesian posterior with a flat prior in the fourth power of the coupling. The helium and vacuum mass regions and datasets differ; neither result is an axion detection or an exclusion of all masses. The vacuum-run limit accounts primarily for statistical fluctuations; the authors estimate systematic effects below 10% rather than independently proving they vanish.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
M. Arik; S. Aune; K. Barth; V. Anastassopoulos
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.