Keywords |
  • Physics


The axion is a hypothetical particle devised by theoreticians to explain the charge-parity symmetry observed in the strong interaction.

The axion could be the invisible matter of the universe.

This particle is very light (its mass should be between 10-6 and 10-3 eV/c2), is electrically neutral and only interacts very weakly with "ordinary" matter. It is therefore very difficult to detect.


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