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boson:see elementary particleselementary particles,
the most basic physical constituents of the universe. Basic Constituents of Matter
Molecules are built up from the atom, which is the basic unit of any chemical element. The atom in turn is made from the proton, neutron, and electron.
..... Click the link for more information. ; Bose-Einstein statisticsBose-Einstein statistics,
class of statistics that applies to elementary particles called bosons, which include the photon, pion, and the W and Z particles. Bosons have integral values of the quantum mechanical property called spin and are "gregarious" in the sense that an
..... Click the link for more information. .
bose particle, a particle with zero or integral spin. Bosons obey Bose-Einstein statistics (hence the designation of the particle). Bosons include light quanta, or photons (spin 1); quanta of the gravitational field (if such exist), or gravi-tons (spin 2); unstable elementary particles such as mesons and boson resonances; and also compound particles made up of an even number of fermions (particles of half-integral spin)—for example, atomic nuclei with an even total number of protons and neutrons (a deuteron, a 4He nucleus or alpha particle, and so on); and gas molecules. Bosons are also quasi-particles of integral (or zero) spin—for example, pho-nons in the solid state and in liquid 4He and excitons in semiconductors and dielectrics.
V. P. PAVLOV