Physicists unveil results helping explain universe

GENEVA - Scientists at the world's top lab for particle physics say they've witnessed an extremely rare event that adds certainty to how they think the universe began.

Physicists Pierluigi Campana and Tiziano Camporesi, leaders of the two main teams of scientists at the European Center for Nuclear Research, say they measured a particle called "Bs" decaying into muons, a fundamental particle.

Campana said the new results, which are being formally unveiled at a major physics conference in Stockholm later Friday, are important because they help confirm the so-called standard model of particle physics.

The standard model is "coming through with flying colors," he says, though it describes only 5 percent of the universe.

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