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search A curve in space predicted by general relativity  A
graviton is a hypothetical particle that 'transfers'
gravitation's force (particles like this are known as gauge
bosons) from its field. Gravitons have never been observed,
directly or indirectly[1], however, there have been several
theories that use gravitons to explain certain phenomena. For
example, a theory that describes black holes by combining
quantum mechanics and gravity, has been advanced by Georgi Dvali
and Cesar Gomez, which suggests a black hole is "an overpacked
bucket of gravitons".  Because the graviton is a particle that
has force (gravity), it is classed as a gauge boson. Other gauge
bosons include the photon, the gluon, and the W and Z particles.
If someone found one, it could lead to a theory which would join
together the four main physical forces: electromagnetism,
gravity, strong force and weak force.  References[change | edit
source]    1. Wei, Lisa (2003). "What is a g