God's Broken Machine.(International Edition; SCIENCE)(Large Hadron Collider )

Byline: Fred Guterl and William Underhill

As Europe makes repairs to its shiny new particle accelerator, U.S. rivals prepare to steal the prize.

Investors aren't the only ones feeling a pit in their stomachs lately. Physicists at the world's biggest particle accelerator, the Large Hadron Collider in Geneva, are seeing their dreams of Nobel Prizes go down the drain along with the Dow. The collider was sold to the European public as the best chance of discovering a piece of subatomic debris so important to our understanding of the universe that it's been dubbed the "God Particle." Less than a month after scientists flipped the switch on the new machine back in September, however, it broke down. Repairs will take a year.

The wait itself isn't so bad--particle physicists are used to biding their time while technicians fix their big, delicate machines. Now, though, a U.S. rival seems to have exploited the lull by staging a last-minute comeback, threatening to leapfrog the Europeans to the prize. This week scientists at Fermilab in Batavia, Illinois, will announce new data that not only narrows the gap between them and the coveted God Particle, but also suggests that the LHC may not be particularly well placed to make the discovery at all. The finding is a public-relations blow to the LHC and tarnishes Europe's newly burnished image as a leader in Big Science.

The problem is partly of the physicists' own making. The LHC, completed last year at a cost of [euro]3 billion, triggered an American-style media blitz. The BBC devoted an entire day of radio programs to the project. The world's press ran headlines like "Mankind's Greatest Experiment," "Hunt Begins for Secrets of the Universe" and "The Shot Heard Round the Universe." (NEWSWEEK put the collider on its cover, too.) One account described the LHC itself as the "God Machine."

Perhaps the biggest mistake was in creating such high expectations for what is only one of many goals, though arguably the most important: to discover the Higgs boson (a.k.a. the God Particle). Whether the Higgs exists goes to the heart of particle physics--if there's no Higgs, the "standard model" of the universe that physicists have been honing for a half century would need major revision. Finding out entails sending protons around a magnetic racetrack and then smashing them into one another at high energies. The LHC, the argument went, is the only machine big enough to reach the energies needed to make the Higgs (if it exists) appear.

The only problem with that story is that it might not be entirely ...