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Hello, the Nobel Prize-winning British physicist Paul Deerech declared that the laws of

nature should be expressed in beautiful equations. True to his word, he is responsible for one of the

most beautiful. Formulated in 1928 it describes the behavior

of electrons and is called the Dirac equation. But the Dirac equation is strange. For every question

it gives two answers, one positive and one negative.

From this its author concluded that for every electron there's an equal and opposite twin.

He called this twin the anti-electron and so the concept of antimata was born. Since then

physicists have created antimatter in the laboratory and we even use it in our hospitals

but antimatter remains fundamentally mysterious. There should be much more of it around, but there isn't.

And to understand why may bring us closer to understanding events at the origin of the universe.

With me to discuss antimatter, I Ruth Gregory,

Professor of Mathematics and physics at

the University of Durham

Frank Close professor of physics at Exeter College University of Oxford and Val Gibson

reading high energy physics at the University of Cambridge.

Val Gibson, let's establish some basic definitions.

Before we talk about antimatter, can you outline us the picture of matter

and explain how that breaks down?

Yes, of course. Matter is the stuff that we and everything around

it is made of, right? So if you had the most powerful microscope in the world, you could

...