It's often been speculated why there is an imbalance of matter and anti-matter in the universe. I propose a theory here. Matter can be created from energy without the simultaneous formation of anti-matter, but the process is extremely unlikely, especially at lower energies. As you may know, particles lose an amount of rest mass as they fall into a gravitational field. If the gravitational field was intense enough, the amount of rest mass could be reduced to a negligible amount. That would certainly be true in the instant right before the big bang. If particles effectively have no mass [there may be rest mass in the system but they're not tied up in the particle], there would be a symmetry between matter and anti-matter, and the two would be interchangeable. There is a minimum critical energy for this to be able to occur. The gravitational potential energy within the system must be greater than the rest mass of the particles (i.e. energy that would be released if half of those particles were anti-matter and they annihilated with the other matter half). Because the gravitational force is relatively weak, this requires a very large amount of energy. Basically all the energy would go into creating matter rather than a balance of matter and anti-matter (which is typically observed). In a way, the process is fundamentally no different, it would still take close to the same amount of energy to create matter as it would to create half matter and half anti-matter. (If you're wondering how that it could be, it's because anti-matter with matter would not be able to release as much energy after losing most of their mass in an intense gravitational field)
a sarcastic comment, I can see you're not buying this theory and see it as absurd sorry, maybe i'm just being overly cynical (was debating with a troll in another thread), maybe you were being genuine
I was serious, and you were basicly sayign the same exept you were saying "If the gravitational field was intense enough, the amount of rest mass could be reduced to a negligible amount." I went one step further and said maybe it went into an early black hole and became part of another universe maybe early on we had white holes and got some energy from a neighboring universe as well
Maybe the gravitational field inside a regular black hole is not strong enough to turn protons [or neutrons] directly into anti-protons [or anti-neutrons], but is enough to turn protons into positrons, which then would annihilate with electrons, thus transforming matter into energy. Or the reverse, when anti-matter fell in there, it was transformed into energy. [In normal processes, protons can't just decay into positrons, though it's not understood why, and in fact mainstream theory has struggled to explain why they don't]
Or maybe there just isn't any anti-matter. Think it through, it 'exists' because it fills a hole in a theory...
