American Accelerator's Last Hurrah: 99.8% Certainty God Particle is Found
July 3, 2012 7:58 PM
Tevatron presents strong evidence Higgs boson was observed, but LHC needed to provide final verification
Tomorrow, while America celebrates July 4, mankind worldwide may celebrate a separate momentous event -- the discovery of the
legendary Higgs boson
I. Riding Into the Sunset -- Tevatron Goes Out With a Bang
European Organization for Nuclear Research
hold a special press conference at 9 a.m. The event will provide an update to the world on the progress in the search for the critical particle using
the Large Hadron Collider
, the largest and most expensive laboratory apparatus in history. Many physicists
supporting the existence of the Higgs boson to be presented.
On the eve of that event the
U.S. Department of Energy
, has published information that strongly hints at the existence of the Higgs boson, but stops short of providing explicit proof of its existence.
The data comes courtesy of Tevatron, a smaller accelerator 4 miles in circumference. Located on the FermiLab grounds just east of Batavia, Ill., Tevatron was long the world's most powerful accelerator. Its tests actually wrapped up last year, before the accelerator was
permanently shut down
, after the U.S. decided being a world leader in scientific research was no longer among its spending priorities.
has offered a tantalize tease of what lies ahead with the LHC. Taking 10 years worth of data involving approximately 500 trillion particle collisions, the FermiLab teams offered up signs of elusive particle.
The Tevatron's greatest legacy may be in finding the first evidence of the Higgs boson.
States Rob Roser a spokesman for one of the two Tevatron experiments, "Our data strongly point toward the existence of the Higgs boson. But it will take results from the experiments at the Large Hadron Collider in Europe to establish a discovery."
The Tevatron was able to determine with relative accuracy that the particle it observed was a Higgs boson. But the 1-in-550 chance that the finding was a statistical fluke (99.8 percent level of certainty) was unacceptably high in the laser-precise world of particle physics -- hence the LHC's firepower is necessary.
The LHC is better equipped to find the Higgs boson, with its higher beam energy, longer 17 mi. (circumference) track, and state-of-the-art detection gear.
II. Why the Higgs Boson Matters
The Higgs boson is the only fundamental subatomic particle predicted by the Standard Model that has yet to be observed.
But it is not mere novelty that drives researchers to observe this particular particle, one must understand the Standard Model of particle physics. This pillar of physics theory predicts that the Higgs boson gives rise to the so-called Higgs mechanism, a sort of "sticky field" that coats particles like a spoon dipping through a jar of honey. This "sticky" effect is thought to give protons, neutrons, and electrons -- the building blocks of matter that most of us are familiar with -- their mass.
Unfortunately the Higgs boson needs very high beam energy and luminosity in order to be provide enough mass and conditions favorable to a Higgs boson. The Higgs boson is predicted to be less that 1.4 TeV, if the Standard Model is correct.
If the Higgs boson or similar electroweak symmetry breaking mechanism are not found to give the subatomic particles their mass, then it will be an intriguing open season for new theories. But if the Higgs boson is observed, mankind will be content in knowing that we have quantified yet another facet of reality as we know it.
Nobel Prize laureate Leon Lederman popularized the hunt for the Higgs boson in his book "
The God Particle
", which chronicled his work hunting for the particle at FermiLab. Professor Lederman originally intended the title to be "The Goddamn Particle" -- an expression of his frustration at the difficult observing it. The title was subsequently shortened and the phrase "God particle" stuck as a colloquialism for the complex theoretical particle.
A Nobel prize winner nicknamed the Higgs boson the "God particle", a less cheeky shortening of his longer name for it -- the "Goddamn particle". [Image Source: Gandee Vasan/Getty Images]
The latest results from his lab do little to end the frustration, but they do provide indication that a Higgs boson's mass would be between 115 and 135 GeV -- about 130 times the mass of the proton.
Now all that remains is to see what exactly the LHC has gleaned within that band of energies.
Was the Tevatron's blip, unlikely as it may be, a mere stastical fluctuation, or was it the first observation of the God particle? The data from the LHC should offer evidence towards which possibility is true.
"We can't expect users to use common sense. That would eliminate the need for all sorts of legislation, committees, oversight and lawyers." -- Christopher Jennings
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