What is Mirror Matter? March 11, 2008Posted by gordonwatts in physics.
A friend of a friend was investigating the Tunguksa explosion. Mirror matter has been offered up as an explanation. I’ve never heard of mirror matter before (wikipedia has a very quick introduction). The idea, basically, is to restore CP as a fundamental symmetry of our world. And, because the mirror matter would only weakly interact with our world, it might be a good dark matter candidate. There are other predictable effects as well — all having to do with astro observations. And there are even papers in real journals about it (but not many; it never seemed to really catch on the way some theories do).
All good so far. So how come I’ve never heard of it? Do I just live in a hole? Or is it because it is really only testable in an astrophysics experiment and I’ve not paid them enough attention?