Possible new particle not in Standard Model

摘要

The Collider Detector atFer-miLab (CDF) experiment on April 6 made news beyond the level of attention normally given to particle physics. Analysis of proton-antiproton collisions has shown unexpected data that are best explained by the production from the collisions of a type of particle that not only has never been observed before but that has characteristics that are not predicted by the Standard Model of particle physics, which was developed over the past few decades to explain what the universe is and how it got that way. Fermi National Accelerator Laboratory, near Batavia, 111., has been one of the world's leading particle accelerators (and often the most powerful) for more than 40 years.