Thread: Significant CP violation discovered

As was announced in a recent press release, a group of particle physicists have found a significant violation of the CP symmetry beyond what is predicted by the current standard theory. If this is true, it could help answer the question why the universe is dominated by matter instead of antimatter.

http://www.fnal.gov/pub/presspass/pr...-20100518.html

Thank's for posting that. I downloaded the whole report. Still slowly digesting it. Antimatter is fascinating stuff.

I was thinking, it could be possible that the probability of creation of different particles is biased by their potential energy cost.
That is it is cheaper to produce positive charged particle inside a negative potential field & a negative particle in high voltage positive field.

There would need to be some mechanism like this in the universe to balance the protons & electrons in matter. Assuming the two types of particles are not created simutainiously in the same event.

Could the experiment be using high voltages the are effecting the result?

Any chance of this being true could open up the possibility of electric fields in the bigbang creating areas of matter & antimatter.

AFAIK, there were no areas of matter or antimatter during the Big Bang. Everything seems to have been very evenly distributed, with a slightly higher concentration of matter over antimatter.

Originally Posted by Dishmaster

As was announced in a recent press release, a group of particle physicists have found a significant violation of the CP symmetry beyond what is predicted by the current standard theory. If this is true, it could help answer the question why the universe is dominated by matter instead of antimatter.

http://www.fnal.gov/pub/presspass/pr...-20100518.html

- Rather probably such result isn’t totally sufficient to answer on the question about the matter/ antimatter dominance in Matter. When the antiparticles that are obtained at experiments interact with particles nothing unusual happens – the products of annihilation are some neutral usual particles, mostly – photons. When in this (the link) experiment the effect relating to "matter abundance" only near 1% was observed.

So if after BigBang the abundance was near this value, then 99% of initial Matter annihilated, but didn’t disappear. Correspondingly Matter’s mass should be on 2 order greater then one observes now and 99% of the mass should be photons -?

Cheers

Originally Posted by Dishmaster

As was announced in a recent press release, a group of particle physicists have found a significant violation of the CP symmetry beyond what is predicted by the current standard theory. If this is true, it could help answer the question why the universe is dominated by matter instead of antimatter.

http://www.fnal.gov/pub/presspass/pr...-20100518.html

for my opinion when you look at small plase you see just small part of it ( matter and antimatter) and it hard to them to be together.

I am still trying to get a handle on this.
I am assuming that protons come from an imbalance in events that create proton antiproton pairs & electrons from electron positron events.
Or is there some linking intermediate particle between proton & electron events?

If CP violation is not biased by eletrical potential energy cost of particle creation, how does the universe get a balance in electrons / protons?

If there is not a balance is electrons & protons, it would opens up some interesting possibilities for dark matter.