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| physical object > natural object > particle > boson > axion |
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| axion comparison table | ||||||
| Subject | is a kind of | has quantum behavior | has acceptance statu | has spin | has mass | has definition |
|---|---|---|---|---|---|---|
| boson | particle | Bose-Einstein statistics | integral | A particle, or pattern of string vibration, with a whole number amount of spin; typically a messenger particle. | ||
| hypothetical particle | particle | hypothetical | ||||
| axion | boson | Bose-Einstein statistics | hypothetical | 0 | 10-5 to 10-3 eV | A hypothetical spin-0 particle with a very small mass of 10-5-10-3 eV. It was postulated in order to provide a natural solution to the "strong CP problem". |
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