gauge boson - a particle that mediates the interaction of two elementary particlesboson - any particle that obeys Bose-Einstein statistics but not the Pauli exclusion principle; all nuclei with an even mass number are bosons gluon - a gauge boson that mediates strong interaction among quarks gravitons - a gauge boson that mediates the (extremely weak) gravitational interactions between particles photon - a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle |