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Gravity and Antimatter

Articles / Personal Stuff/Random News
Date: Jun 04, 2008 - 12:00 PM
An interesting physics experiment to try to determine whether or not antimatter has antigravity properties:

The idea is to fire a beam of antihydogen atoms at a target and see how much they are deflected by gravity.

That?s easier said than done. Creating a beam of this stuff turns out to be remarkably tricky. The problem is that it?s easy enough to trap antiprotons and positrons in electromagnetic fields. It?s even fairly straightforwad to put them together so that they form antihydrogen. The problem is that antihydrogen is neutral and simply falls out of the trap. So some way has to be found to collect and trap these antiatoms.

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