Recent content by S.W. Morrison

OK folks, let's disconnect cause/effect for matter/anti-matter and the Big Bang. What about experimental or observational evidence for the hypotheses that (a) matter and antimatter can potentially be created in almost equal amounts except that antimatter keeps being annihilated by the slightly...

What do you mean by that?

Well, then, that certainly would be a neat experimental research project for young physicists looking to answer one of the universe's great mysteries.

I get the Big Bang part and that a matter/antimatter explosion might have caused it. But the other thread I was exploring was - what if anti-matter is inherently less stable than matter? Would that explain why we can't find much anti-matter in the universe? So my question is still out there: Has...

According to Science News (12/18/10), in a recent CERN experiment (called ALPHA), a stream of antiprotons were supercooled into a cloud of about 40,000 particles that were then nudged into 2,000,000 positrons chilled to 40 kelvins. About 10% of the time they formed anti-hydrogen atoms. How does...

So way back 13. something billion years BP, stuff was really stuffed compactly. Since there is almost no anti matter around now, one could assume that the ratio of matter to anti matter in the beginning was - what? a billion to a billion and one? Would that kind of mostly mutual annihilation...

So there is no effect at all on the surviving atoms? Has this been proven mathematically and/or experimentally?

OK, let me put it this way: If a cloud of 100 hydrogen atoms meets a cloud of 50 anti-hydrogen atoms, what will be the result?

So what happens to the 10 photons and 5 electrons that are left. Are they affected by the energy given off by the mutual annihilation of the others? Likewise, if these anti-matter entities are actually hydrogen and anti-hydrogen, will the same thing happen?

When more matter collides with less antimatter, is all of the antimatter and matter destroyed, or just equivalent amounts, and if the latter, what happens to the excess matter?