graviton

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In physics, the "graviton" is a hypothetical elementary particle that mediates the force of gravity in the framework of quantum field theory.

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Definitions (3)

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  1. noun A hypothetical particle postulated to be the quantum of gravitational interaction and presumed to have an indefinitely long lifetime, zero electric charge, and zero rest mass. See Table at subatomic particle.

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Examples (43)

  • Presto, string theory yields every particle we know, plus gravity (communicated by a particle called the "graviton") and even more. —  F ;SF; - vol 103 issue 04-05 - October-November 2002
  • The truth is that yes gravitons haven't been discovered but that isn't because of a lack of existence its a lack of tools sophisticated enough to find the graviton or higgs boson for example. —  Original Signal - Transmitting Digg
  • Testing the inverse-square laws of Newton and Coulomb, (2) Seeking a nonzero value for the rest mass of photon or graviton, and (3) Considering more degrees of freedom, allowing mass while preserving gauge or general-coordinate invariance. —  CiteULike: Everyone's library
  • Meanwhile, for gravity there have been vigorous debates about even the concept of a graviton rest mass. —  CiteULike: Everyone's library
  • For dark matter, which involves increased attraction at large distances, any explanation by modified gravity would be qualitatively different from graviton mass. —  CiteULike: Everyone's library
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