The graviton is a hypothetical elementary spin-2 particle proposed to mediate gravitation. While it remains undiscovered due to the difficulty inherent in its detection, it is sometimes included in tables of elementary particles. The conventional graviton is massless, although some models containing massive Kaluza–Klein gravitons exist.
the graviton is a hypothetical elementary spin-2 particle proposed to mediate gravitation while it remains undiscovered due to the difficulty inherent in its detection it is sometimes included in tables of elementary particles the conventional graviton is massless although some models containing massive kaluza–klein gravitons exist