By using a magnetic
field through a cloud chamber, Carl Anderson first
discovered the positron (the antiparticle to the
electron) in 1932 and it was decades before
another antiparticle was discovered [³page 924]. But
under the meticulous calculations and genius
scrutiny of the next generation of physicists,
science prevailed. Ultimately, it has been
shown that all particles have antiparticles except
for a few, including the photon and the Higgs
Boson.
Antiparticles are produced in
high energy reactions. They typically don't
live long in the presence of their constituent
particles, where they will annihilate one another
upon contact. For this reason, it is
believed that the universe is mostly made of
matter rather than antimatter, and that pockets of
antimatter do not exist in the universe.
