Uncertainty in annihilation?

Good evening /sci/, I'm currently still in school with the intention of studying Theoretical physics next year, hopefully at Imperial College London. In our physics class this morning, we were covering the creation and annihilation of particle-antiparticle pairs, and one of my peers raised an interesting question. Take for example the annihilation of an electron-positron pair. Upon annihilation two gamma photons are released.The question raised was that if the position of a photon is an event which will be determined probabilistically, how is it that we know that the outcome of this annihilation is indeed two gamma photons travelling opposite directions?

maybe because we know the gamma photons will bounce of each other?  i think this has to do with the position of the actually annhilitian in 3-d space

Conservation of momentum.
Nothing prevents the creation of 3 or more photons.
I don't know how the experimentalists would go about verifying this... bubble chambers?

Like 4tran said, conservation of momentum. You've discovered nothing new, so don't try to act like it. Kids like you who spew this crap really get on my nerve, especially with your added arrogance comments like "hopefully at ICL". So fucking what? I don't go running my mouth off about peterhouse. Learn some modesty you retard fuck.

>>4

It wasnt intended as an arrogant remark, I just wanted to introduce myself so maybe I WOULDNT get a bunch of elitist fucks like yourself replying merely to be obnoxious.

>>3
Thank you for responding in a positive manner and giving me an idea as to the answer to my question

>>4
Thank you for adding your useless two cents.

Also I didn't think I had discovered anything new, I merely wanted an opinion and figured this would be the best place to come.

By slamming an electron and a positron together.

Seriously. It was detected in a collider. We use it today. From Wikipedia(I know, I'm sorry.):


"This process is the physical phenomenon relied on as the basis of PET imaging."