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large Hadron Collider

The collaborations have used the largest samples of proton–proton collision data recorded so far by the experiments to study the unique particle in unprecedented detail Today, exactly ten years after announcing the discovery of the Higgs boson, the international ATLAS and CMS collaboration at the large Hadron Collider(LHC)report the results of their most comprehensive studies yet of the properties of this unique particle. The independent studies, described in two papers published today in Nature, show that the particle’s properties are remarkably consistent with those of the Higgs boson predicted by the  Standard model  of particle physics. The studies also show that the particle is increasingly becoming a powerful means to search for new, unknown phenomena that – if found – could help shed light on some of the biggest mysteries of physics, such as the nature of the mysterious dark matter present in the universe.

large Hadron Collider

Five sigma

How much is enough? The answer is given by statistics: for a given excess in a given data sample it is possible to calculate the probability that an excess of this size would appear purely by chance.

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