God Particle

At Fermilab, the Race Is on for the ‘God Particle’
By DENNIS OVERBYE
In 1977, Steven Weinberg, then two years shy of the Nobel Prize in Physics, decided to do a little of what some theorists call “ambulance chasing.”
He heard a rumor, while spending a year at Stanford, that collisions at the Fermi National Accelerator Laboratory were spitting out weird triplets of particles known as muons, which are sort of fat electrons. Dr. Weinberg canceled reservations at a lodge in Yosemite National Park to spend the weekend with his colleague Benjamin Lee, trying to concoct a theory to explain the trimuons.
But the only theory he and Dr. Lee could come up with was ugly. A few weeks later it turned out that the triplet effect wasn’t true.
“I’ve always been embarrassed that we managed to come up with a theory,” Dr. Weinberg, now at the University of Texas at Austin, said recently.
Dr. Weinberg said that 30 years later, he still has not gotten to Yosemite.
“And we never got trimuons either,” he added.
And therein lies a lesson — or not — for the world’s physicists.
Earlier this summer, the physics world was jolted by a rumor that a team of scientists from the Fermi National Accelerator Laboratory, or Fermilab, in Batavia, Ill., had found a bump in their data that might be a legendary particle that has haunted physicists for a generation. It is known colloquially as the Higgs boson and sometimes grandly as the “God particle.” According to the Standard Model that has ruled physics for 30 years, the Higgs endows elementary particles in the universe with mass.
The history of physics is full of bumps that could have been revolutionary but have disappeared like ghosts in the night, and this rumor of a possible Higgs sighting was not even the first this year. Most physicists who have heard this rumor think that this bump is likely to be another of those disappearing anomalies, like the trimuons that frustrated Dr. Weinberg. But then these same physicists point out that you never know.
The team, known as the D Zero collaboration and numbering some 600 physicists from 19 countries and 88 institutions, will not even say whether there is a bump in its data until the scientists have decided for sure that it is nature calling and not just a random statistical fluctuation.