Question

what is the axion and hypothesis?????????????????​

Answer 1

Answer:

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Answer 2

Explanation:

The axion (/ˈæksiɒn/) is a hypothetical elementary particle postulated by the Peccei–Quinn theory in 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.

Theorized: 1977, Peccei and Quinn

Mass: 10−5 to 10−3 eV/c2

Status: Hypothetical