What’s the Matter with AntiMatter?. Paul Dirac Predicts AntiMatter!. In 1929, Theoretical Physicist Paul Dirac combined Special Relativity Quantum Mechanics to try to describe the behavior of the electron One problem with his equation: it had two solutions
to try to describe the behavior of the electron
also has two solutions: +5 and -5
Neils Bohr: Of all physicists, Dirac has the purest soul.
Low Energy Antiproton Ring (LEAR).
But… costs $62.5 trillion per gram.
Might be able to bring this down to $5 billion per gram
The Antennae Galaxies
The 3-km long linear accelerator in Stanford, California uses electromagnetic fields to accelerate electrons and positrons to close to the speed of light:
The B mesons live for about a billionth of a second, in which time they travel less than a millimetre. The BaBar detector observes the particles to which the Bs decay. From the decay products, the physicists can deduce which was the B and which was the anti-B. They can also measure how far and fast the Bs travel before decaying, and hence they can calculate their lifetimes.
(rescale sides by 1/|V*cbVcd| and choose V*cbVcd real )
The physicists are interested in the difference in the decay times of the and the . By observing millions of decays, they can build up a distribution of the differences in the decay times. It is predicted that the actual distribution will be different from that which you would get if there were complete symmetry between matter and antimatter.