antimatter: particle that has the opposite charge, parity, and time as its counterpart

CP violation: when antimatter does not behave or mimic its matter counterpart

K1 & K2  particles: two components of a kaon

kaon: a subatomic particle used to study difference between matter and antimatter

CERN: particle research facility in Switzerland

Fermilab: physics research facility near Chicago

Big Bang Theory: idea that universe was created through explosion of massive amounts of energy

Escher: modern artist with a benal portfolio, good for little more than physical demonstrations to illustrate the difference between matter and antimatter

CPT theorem: idea that antimatter should have opposite charge, parity, and time of it's matter counterpart

gamma rays: high energy waves, a result of matter colliding with antimatter

cloud chamber: a device used to study reactions between gamma rays and the atmosphere

"epsilon prime over epsilon": mathematical ratio used to describe difference between matter and antimatter