Evidence of the existence of the Higgs boson are becoming more


02/08/2012

The probability of the existence of the Higgs boson, the experimental discovery of which was announced on July 4, was even higher.

This particle has been the subject of decades of searching, because it is the missing link in the Standard Model. It is this particle can explain why matter has mass.

A team of scientists involved in the search for the Higgs boson using the Large Hadron Collider (LHC), reported an increase in the probability of the existence of this particle to the level of "5.9 sigma".

If we translate this value into a more understandable form, it is equivalent to one chance out of 300 million, the Higgs does not exist, or that the results are a statistical margin of error.

You can declare the formal opening of the particles when the probability of a 5 sigma, which is equivalent to one chance of 3,500,000.

It is this level was reached Atlas detector team during one of the experiments at the LHC to find the Higgs, the results of which were announced on July 4. The other detector, CMS has shown the probability of between 4.9 and 5 sigma. This range of outcomes CMS, testifies to the fact that there are several ways to identify the Higgs boson, none of which can not see it directly.

Such as the LHC accelerator, colliding with each other at the extraordinary energy of the particle, with a view to their destruction into component parts, including Higgs, that there is only a small fraction of a second, and then decays into other particles or flashes of light that can be captured and count .

The team is now Atlas unveiled a more complete analysis of these "channels disintegration", including one in the course of which the Higgs decays into two lighter particles known as W-bosons.

As reported in their paper published online in the journal Physics Letters B, the probability has reached a level of 5.9 sigma.

However, there are still many unanswered questions with regards to whether or not this is the Higgs boson. In their declaration, the newly discovered particle was accurately named the "Higgs similar."

Require further analysis to ascertain how this is consistent with the Standard Model, which is the most complete theory of the existing ones, for the particles and forces of their interaction.

Original: Bbc.co.uk


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