Scientists Find Evidence Of The Higgs Boson. The God Particle Exists!
By Juliana Chan | Top News
July 4, 2012
Scientists from CERN in Geneva unveiled today preliminary data that provides evidence of the long sought after Higgs particle.
AsianScientist (Jul. 4, 2012) – Scientists from CERN in Geneva unveiled today preliminary data that provides evidence of the long sought after Higgs particle.
In December last year, scientists working independently on two giant detectors at the Large Haldron Collider (LHC) reported that they had found hints of the existence of the Higgs boson.
Although tantalizing hints were seen in the ranges 116-130 GeV by the ATLAS experiment and 115-127 GeV by the CMS experiment, the claims were not strong enough at that point.
At a highly-anticipated press conference today, both the ATLAS and CMS experiments reported strong indications for the presence of a new particle in the mass region around 126 gigaelectronvolts (GeV) after analyzing trillions of proton-proton collisions from the LHC in 2011 and 2012.
The particle is named after British physicist Peter Higgs, who postulated in 1964 that a field somewhat similar to an electromagnetic field might give particles their mass. It is sometimes also referred to as the ‘God particle.’
Together with colleagues Robert Brout and François Englert, Higgs postulated that all particles had no mass just after the Big Bang. As the Universe cooled and the temperature fell below a critical value, an invisible force field called the ‘Higgs field’ was formed together with the associated ‘Higgs boson.’
The field prevails throughout the cosmos: any particles that interact with it are given a mass via the Higgs boson. The more they interact, the heavier they become, whereas particles that never interact are left with no mass at all.
This idea provided a satisfactory solution and fitted well with established theories and phenomena. But until now no one has ever observed the Higgs boson in an experiment to confirm the theory.
“The results are preliminary but the 5 sigma signal at around 125 GeV we’re seeing is dramatic. This is indeed a new particle. We know it must be a boson and it’s the heaviest boson ever found,” said CMS experiment spokesperson Joe Incandela.
The next step will be to determine the precise nature of the particle and its significance for our understanding of the universe.
Positive identification of the new particle’s characteristics will take considerable time and data, and the teams say they will be “extremely diligent” in further studies and cross-checks.
Publication of the analyses shown today is expected around the end of July, and more data is being collected at the LHC.
Both experiments involved thousands of scientists from over a hundred institutes in 30 countries, including Australia, China, India, Japan, and Taiwan.
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