Does the concept of annihilation explain the existence of our universe?

[Darken-Sol]

i'm new to phyics and trying to fit it into my head. i just learned of annhilation. as far as i understand everything we observe exists as a result of non-annhilation. a lot of my ideas, at this point, are philosophical. i was hoping to get some info to confirm or deny some of these thoughts. the problem is i am also studying the Tao, and many other things, and they seem to color my thought processes both ways.

 

[Chalnoth]

i'm new to phyics and trying to fit it into my head. i just learned of annhilation. as far as i understand everything we observe exists as a result of non-annhilation. a lot of my ideas, at this point, are philosophical. i was hoping to get some info to confirm or deny some of these thoughts. the problem is i am also studying the Tao, and many other things, and they seem to color my thought processes both ways.

Annihilation is a process by which a particle combines with its anti-particle to produce other, lower-mass particles. Eventually, if you have a precisely one anti-particle for every particle, and the temperature is low enough, all of the particles will eventually find a corresponding anti-particle, eventually producing nothing but radiation.

The fact that we have matter still around means that early on, an imbalance between normal matter and anti-matter was created, so that there was ever so slightly more normal matter than anti-matter. When all of the anti-matter found corresponding particles to annihilate with, a tiny bit of normal matter was left behind. And here we are.

 

[Darken-Sol]

When all of the anti-matter found corresponding particles to annihilate with, a tiny bit of normal matter was left behind. And here we are.

like musical chairs?

 

[Chalnoth]

like musical chairs?

Um, I guess, sort of.

 

[Darken-Sol]

so if the non-annhilation is us, then is it presumable that we are expanding into the annhilation? forgive me for over simplifying, i don't have all the terms down. i understand if no one wants to explain such simple stuff. could some one atleast give me a push in the right direction? i tried google. i usually end up here or wiki though.

 

[Chalnoth]

so if the non-annhilation is us, then is it presumable that we are expanding into the annhilation?

No. We aren't expanding into anything. That's just not how General Relativity works. Basically, the expansion is just average distances between objects getting larger with time.

forgive me for over simplifying, i don't have all the terms down. i understand if no one wants to explain such simple stuff. could some one atleast give me a push in the right direction? i tried google. i usually end up here or wiki though.

This might be a good place to start:
http://www.talkorigins.org/faqs/astronomy/bigbang.html

It's primarily about the evidence, but is a pretty good description of the big bang theory itself.

 

[Smock]

Do I have this correct? The annihilation comes when the universe gets cold and big enough. After annihilation there could be anti-matter or matter left over and it just so happened to be matter this time and that is why we are here?

 

[Chalnoth]

Do I have this correct? The annihilation comes when the universe gets cold and big enough. After annihilation there could be anti-matter or matter left over and it just so happened to be matter this time and that is why we are here?

Sort of. Annihilation actually happens all the time whenever you have both matter and anti-matter sitting around. It's just that when the universe is so hot that the typical energy of a particle is comparable to its mass-energy, new particle/anti-particle pairs are created in collisions as often as they annihilate.

Once the universe cools sufficiently, new particle/anti-particle pairs stop being created, and the annihilation runs away until there's nothing left to annihilate.

But yes, it could have been either way.