Dream Machine.

• Autores: David Appell
• Localización: Scientific American, ISSN 0036-8733, Vol. 290, Nº. 3, 2004, págs. 18-20
• Idioma: inglés
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• Resumen

  • High-energy physicists have a new machine in mind: an unprecedented accelerator 30 kilometers long that would offer a precise tool to explore some of the most important unanswered questions in physics. But the specter of the defunct Superconducting Supercollider--and the money the project ended up wasting--looms large. Advocates of the machine, however, think they can overcome national doubts by going global. The vision is of one machine built by the world and shared by the world. The plan is to accelerate electrons and positrons (the antimatter version of the electron) down dual 15-kilometer pipes and smash them together inside a large detector. The total energy would be up to one trillion electron volts (TeV). This energy may appear much less than the 2-TeV Tevatron at Fermilab and the 14-TeV Large Hadron Collider to be completed at CERN in 2007, but because the particles in those machines share their energy among their constituent quarks, their effective energy drops by about a factor of 10.