The most powerful atom smasher in the United States will soon smash no more.
When powerful particle beams stop circling the Tevatron at the end of September, it will have collected data on more than a quadrillion collisions. Reidar Hahn/FermilabFor more than a quarter century, the Tevatron has probed the standard model’s particles (shown); the top quark was discovered at the Tevatron in 1995.
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