The graviton is a carrier particle.......
ps
graviton time - (hG/c^5)^1/2 = 1.3511889(41) x 10^-43 s
graviton mass - (hc/G)^1/2 = 5.4563026(39) x 10^-8 kg
graviton length - (hG/c^3)^1/2 = 4.0507625(38) x 10^-35 m
graviton current - e/(hG/c^5)^1/2 = 1.1857530(90) x 10^24 A
graviton temperature - c2/(hG/c^3)^1/2 = 3.5518626(82) x 10^32 K
graviton substance - M/(hc/G)^1/2 = 1.6605387(31) x 10^-27 kmol
graviton intensity - (hG/c^5)^1/2/sr = 1.9720204(06) x 10^-45 cd
....
Gravitons travel at the speed of light, (there goes mass, length and time), individual particles can't have current, massless particles can't have temperature, and I don't know what the yellow rubbery the last two are about.
[edit]
This is by definition of the words.