CERN Axion Solar Telescope
CAST
The CERN Axion Solar Telescope (CAST) is an experiment to search for hypothetical particles called "axions"
These have been proposed by some theoretical physicists to explain why there is a subtle difference between matter and antimatter
If axions exist, they could be found in the centre of the Sun and they could also make up invisible dark matter.
Axions are hypothetical particles postulated by the Peccei-uinn theory n 1977 to resolve the strong CP problem in quantum chromodynamics (QCD)
If axions exist and have low mass within a specific range, they are of interest as a possible component of cold dark matter.
Axion is named after a brand of washing powder
It cleaned up a long-standing problem in theoretical physics
