and 
or e- and e+. They then study the
numerous particles that result from the boson decay. )
has an antiparticle denoted by ,
pronounced p-bar. One can also refer to the antiparticle of a proton,
as an antiproton.An electron's (e-) antiparticle is a positron (e+).
When a particle and its antiparticle meet, they can annihilate and produce neutral bosons, such as photons, and Z bosons, or gluons.
Particle physicists use colliding beams of
and or e- and e+. They then study the
numerous particles that result from the boson decay.
An interesting question is why there is so much more matter in the universe and so little antimatter! Physicists are still puzzled about this.
Bubble Chamber
Photograph (144 K bytes)