CMS proton image from CERN
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Higgs boson: Cern scientists 'pretty sure' they found it

14 March 2013 Last updated at 12:12 GMT

Scientists at the Large Hadron Collider say the particle outlined in July 2012 looks increasingly to be a Higgs boson.

The Higgs, long theorised as the means by which particles get their mass, had been the subject of a decades-long hunt at the world's particle accelerators.

Pallab Ghosh reports.