Main Page | See live article | Alphabetical index Exchange particles are particles with integer spin (bosons) that mediate a fundamental force. They are, for electromagnetism, the photon, for weak nuclear interaction, the Boson Z and W boson, for strong interaction, the gluon, and for gravity, the hypothesized graviton. (Maybe a table would be better?) This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.