A subatomic particle, such as a photon, which has zero or integral spin and follows the statistical description given by S. N. Bose and Einstein. Compare with fermion.
- The two farthest-reaching bosons are the graviton, the gauge boson for gravity, and the photon, the gauge boson for electromagnetism.
- The photon, a boson, has a fermion partner called the photino.
- The Pauli exclusion principle does not apply, however, to particles with integral spin, known as bosons, such as photons.
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