CERN has more convincing data on the higgs

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Teams ATLAS and CMS detectors of the Large Hadron Collider (LHC) have been submitted to the journal Physics Letters B the papers with the latest data in their search for the Higgs boson. This was confirmed today the European Laboratory for Particle Physics (CERN) in a statement.

Researchers provide evidence in its work on the existence of a new type Higgs particle that announced earlier last month. On July 4 the heads of the two teams showed evidence of the presence of the new particle, which could be the Higgs boson in the mass region around 126 gigaelectronvoltios (GeV) and a significance level of 5 results sigma.

Level of certainty

On the scale used by particle physicists to describe the certainty of a discovery, a sigma means that the results could be random fluctuations of the data, 3 sigma is considered as an observation  and a result is a 5 sigma discovery.

The latter involves having a confidence value of at least 99.99994% on the finding, namely that scientists can be wrong with a probability of only 0.00006%.

But now researchers have gone beyond CERN. The CMS collaboration results confirm a significance level of 5.8 sigma, and team-ATLAS from the analysis of events where the particle type Higgs boson decays into two W-reach to 5.9 sigma. This result shows that there is only one chance in 550 million that the signal that was recorded had originated in the absence of a Higgs.

With today’s announcement is moving in the results “preliminary” that CERN introduced a month ago. Scientists hope to have later this year a more complete picture of the particle due to new data that will facilitate the LHC. The objective is to determine whether it is exactly the Higgs boson of the standard model of particle physics, or a slightly different version.

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