Higgs Boson: Physicists See Best Proof Yet of 'The God Particle'
After decades of careful experiment, physicists say they have found the "strongest indication to date" to prove the existence of the Higgs boson -- a subatomic particle so important to the understanding of space, time and matter that the physicist Leon Lederman nicknamed it "the God particle."
The announcement today, based on experiments at the Department of Energy's Fermilab near Chicago and other institutions, is not the final word, but it's very close. And it comes just before a major meeting this week in Australia, where more findings will be announced from the giant underground particle accelerator at CERN, the great physics lab in the Alps on the French-Swiss border.
The announcement today, based on experiments at the Department of Energy's Fermilab near Chicago and other institutions, is not the final word, but it's very close. And it comes just before a major meeting this week in Australia, where more findings will be announced from the giant underground particle accelerator at CERN, the great physics lab in the Alps on the French-Swiss border.
"This is one of the cornerstones of how we understand the universe," said Rob Roser, a Fermilab physicist, "and if it's not there, we have to go back and check our assumptions about how the universe exists."
Roser said he expected the CERN scientists to offer more evidence of the Higgs particle, though they will also be cautious. "The Higgs particle, if it's real, will show itself in different ways. We need for all of them to be consistent before we can say for sure we've seen it."
Fermilab has been home to an atom smasher called the Tevatron, which was shut down last year because CERN's Large Hadron Collider is more powerful. Scientists who used the Tevatron have been sifting through the masses of data they collected by sending subatomic particles crashing into each other at nearly the speed of light.
"During its life, the Tevatron must have produced thousands of Higgs particles, if they actually exist, and it's up to us to try to find them in the data we have collected," said Luciano Ristori, a physicist at Fermilab and the Italian National Institute for Nuclear Physics, in a statement. "We have developed sophisticated simulation and analysis programs to identify Higgs-like patterns. Still, it is easier to look for a friend's face in a sports stadium filled with 100,000 people than to search for a Higgs-like event among trillions of collisions."
Read More: Yahoo News..
No comments:
Post a Comment