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Physics labs form big rivalry in pursuit of tiny particle

The Tevatron accelerator at the Fermi National Accelerator Lab, shown in 2000, is after the “God Particle,” believed to give mass to matter.

Associated Press

The Tevatron accelerator at the Fermi National Accelerator Lab, shown in 2000, is after the “God Particle,” believed to give mass to matter.

CHICAGO — So, does the Fermi National Accelerator Laboratory's Tevatron accelerator have a shot against the Large Hadron Collider in Switzerland?

It may not be the question all the guys at the end of bar are asking, but it gets particle physicists psyched.

After all, they're racing to find evidence of a hypothetical particle called the Higgs boson, better known as the "God Particle" because it is believed to give mass to the matter that makes up the universe.

"This has been the holy grail of high-energy physics for the last 30 years," Joe Lykken, a senior scientist at Fermilab in the Chicago suburb of Batavia, said Wednesday.

Just months ago, it appeared that evidence of the Higgs would be found by scientists at the European Organization for Nuclear Research (CERN) manning the Large Hadron Collider (LHC) — not those at Fermilab.

The idea that Fermilab could pull ahead seemed about as likely as a Model T beating a Corvette in a drag race.

"People laughed at the idea of (Fermilab) finding the Higgs," Lykken said. "Our accelerator was not built to find the Higgs."

The LHC was. It's the world's largest atom smasher, far more powerful than the Tevatron. It kicked off with an impressive show of force in September, when beams of protons were fired at nearly the speed of light — first in a clockwise direction and then counterclockwise.

But just more than a week later, the LHC was shut down because of major damage blamed on a faulty wiring splice that caused an electrical arc. This month, the operator said repairs and additional safety features will keep it from firing up again until the end of September.

Fermilab scientists say their accelerator is running very well — raising hopes that its ongoing tests, smashing beams of protons into beams of antiprotons, eventually will result in Higgs particles.

Scientist Dmitri Denisov said Thursday that Fermilab's "probability of discovering" the Higgs is between 50 and 90 percent. Read: They think they have a real shot.

"The bottom line is we have a very reasonable chance to see hints of the Higgs particle by 2010 or 2011," Denisov said.

The scientific world widely believes that finding the Higgs boson would lead to a Nobel prize in physics for the discoverer.

"It's really what we live for, to have the opportunity to embark on such crazy quests," said Jacobo Konigsberg, a University of Florida physicist working at Fermilab.

Harvey Newman, a Caltech physics professor who is heading a group of scientists conducting research at CERN, said Fermilab's accelerator may be only strong enough to show the likelihood of the Higgs, without providing the level of certainty that would classify its findings as a discovery.

Lykken agreed. "The Tevatron will never be taken as the last word and we will need the LHC to nail down whether it really is the Higgs," he said.

But if Fermilab can pull off even the likelihood of the Higgs, "it would be an incredible triumph for the U.S. program to take this underpowered accelerator at Fermilab and make this discovery," Lykken said.

Physics labs form big rivalry in pursuit of tiny particle 02/22/09 [Last modified: Monday, November 7, 2011 4:48pm]
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