WHAT?S NEW Robert L. Park Friday, May 28, 2010 Washington, DC
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From: eric gisse on 28 May 2010 19:53 Sam Wormley wrote: [...] >> 5. ANTIMATTER: NOW AVAILABLE ON-DEMAND. >> Lots of anti-particles are seen in cosmic rays and in particle >> accelerators, but what about anti-atoms? A CERN collaboration named >> Athena announced this week that it has created perhaps 50,000 >> antihydrogen atoms, >> but it's pretty hard to build up an inventory. Antimatter is a staple in >> the science fiction world where it is often used to power spaceships. >> Its >> production in the laboratory is a major scientific milestone. Athena >> beat a CERN collaboration known as Atrap to the goal. Why there is so >> little antimatter in the universe remains a great mystery. Theory >> requires that matter be created as particle-antiparticle pairs. >> Scientists will be looking for any symmetry-breaking difference with >> ordinary hydrogen. Sounds very much like what is wanted is to make an accelerator that collides anti-protons and compare against regular proton-proton collisions. [...] |