Higgs discovery

The Higgs boson is a massive scalar boson predicted by the Standard Model.

Theorized in 1964, a particle with the characteristics of the Higgs boson was observed in 4 July 2012. The ATLAS and CMS experiments at CERN's Large Hadron Collider announced they had each observed a new particle in the mass region around 126 GeV.

On 14 March 2013, a Higgs-type boson was tentatively confirmed to exist by experimental research at the Large Hadron Collider (LHC).
Scientists believe that the Higgs boson is the last discovered particle outlined by the Standard Model of particle physics, which explains the interaction of all subatomic particles.

The verdict will hinge on more detailed measurements of the particle’s properties, like its spin and how it decays relative to other particles. The Higgs boson is supposed to have no spin at all; it is the knuckleball of the subatomic world.

CERN’s collider, just outside Geneva, is now down for two years of repairs, but its teams have stockpiled their unanalyzed data, and look forward to the prospect of more years of high-energy collisions starting in 2015.


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