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Old 08-September-2005, 07:08 AM
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Fraser Fraser is offline
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Default New Differences Between Matter and Antimatter

SUMMARY: Particle physicists believe they have uncovered the reason why our Universe favours matter, instead of being made up of equal parts matter and antimatter. Their experiment was done with the Stanford Linear Accelerator Center (SLAC) in the USA, which collides electrons and antimatter positrons together to produce a spray of exotic particles. Although complete opposites, the various particles and anti-particles should have similar decay times, but the experimenters found that the anti-particles seem to decay much quicker.

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Old 08-September-2005, 01:20 PM
GOURDHEAD GOURDHEAD is offline
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fROM THE LINKED ARTICLE:While BABAR and other experiments have observed matter-antimatter asymmetries before, this is the first time that a difference has been found by simple counting of the number of decays of B and anti-B mesons to the same final state. This effect is known as direct CP violation and is found to be 13%; a similar effect occurs for decays of Kaons and antiKaons but only at the level of 4 parts in a million!
I am disappointed that the details of the decay were not described. I am accustomed to anti-particle "decay" to be annihilation with a particle which does not appear to be what is being said. I suspect that something about the test environment contributed to the perceived results.
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For those inclined to oppose human meddling with the structure of the universe or the composition and configuration of objects and groups of objects within the universe, consider:
Whether there is a limit to the magnitude of a modulation of chaos below which order remains invariant? Or, is order but a fiction invented by perspectives applied over finite, however large, time intervals?
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