Halos and dark matter: A recipe for discovery

About three years ago, Wolfgang "Wolfi" Mittig and Yassid Ayyad went looking for the universe's missing mass, better known as dark matter, in the heart of an atom.

Researchers measure rare particle decay with high precision

At CERN's Large Hadron Collider (LHC), studies of rare processes allow scientists to infer the presence of heavy particles, including undiscovered particles, that cannot be directly produced. Such particles are widely anticipated ...

What comes after the Higgs boson

Ten years ago this week, two international collaborations of groups of scientists, including a large contingent from Caltech, confirmed that they had found conclusive evidence for the Higgs boson, an elusive elementary particle, ...

Atmospheric helium levels are rising, research confirms

Scientists at Scripps Institution of Oceanography at UC San Diego used an unprecedented technique to detect that levels of helium are rising in the atmosphere, resolving an issue that has lingered among atmospheric chemists ...

Research places new limits on the bizarre behavior of neutrinos

In a laboratory under a mountain, physicists are using crystals far colder than frozen air to study ghostly particles, hoping to learn secrets from the beginning of the universe. Researchers at the Cryogenic Underground Observatory ...

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