What happened to all the antimatter created in the Big Bang?

Answer 1

Hi bornsmartgal

The antimatter created in the very early universe annihilated with matter created at the same time. When a matter particle and its antimatter counterpart meet the annihilate and produce energy (eg a collision between an electron and positron produces two back to back photons). In the early universe there was a small over abundance of matter over antimatter (one billion and one matter particles for every one billion antimatter particles). After the annihilation this leaves matter left over (plus a billion photons for every matter particle!)

This initial over abundance of matter over antimatter is puzzling - the difference between matter and antimatter is a reversal of charge and particle physics is largely symmetrical to charge reversal. Physicists have been looking for an asymmetry in nature which will explain the over abundance, and have finally found a few such events (called charge-parity symmetry violations). It appears nature isn't totally symmetrical after all.


Hope this helps!
The Chicken

Answer 2

we expect of that there have been only about yet no longer precisely equivalent quantities of anti matter and matter produced. The anti-matter become annihilated into radiation and that's what we now see because the cosmic 'fireball' radiation at present. the maths artwork like this: for each 10 billion debris of anti-matter, there have been 10 billion and one debris of matter. finally the temperatures fell so low that the reaction might want to no longer save re-starting to be the matter and anti matter when they annihilated, and so after the perfect era of annihilation, all the matter and antimatter annihilated abandoning the 20 billion photons of radiation plus the single particle left over matter. on the cosmic scale, this mathematics become replicated over and throughout lower back to go away behind sufficient matter 'ash' to sort stars and galaxies. The radiation is what we now see because the fireball cosmic history radiation, and the leftover matter went into the celebrities and galaxies and us! all of us understand from lab experiments that the decay approaches in nature do no longer favor matter and antimatter both, so that's superb reason to anticipate that in the early universe, matter and antimatter were contemporary, yet approaches favoring matter were somewhat extra significant and instantly ahead.

Answer 3

It decayed due to spontaneous symmetry breaking.

In other words, at first matter and antimatter obeyed the same set of rules. But this symmetry was broken in the early stages of the universe, and antimatter became less stable than matter. As a result it decayed to energy.

Answer 4

Suppose there exists a galaxy comprised entirely of antimatter. Wouldn't that be cool? It could happen.

Answer 5

I don't know the antimatter. I know that matter is of three types solid, liquid and gas.

Answer 6

That is one of the great questions of physics and should be answered by any grand unifying theory. Relativity says that precisely equal amounts of matter and anti-matter should have been created at the big bang. Where is it?

Answer 7

it doesnt MATTER, ahhh hah hahh hah hahahhah I kill myself