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Particle physics
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Evidence Found for a New Fundamental Particle
An experiment at the Fermi National Accelerator Laboratory near Chicago has detected far more electron neutrinos than predicted — a possible harbinger of a revolutionary new elementary particle called the sterile neutrino, though many physicists remain skeptical.
Neutrinos Suggest Solution to Mystery of Universe’s Existence
Updated results from a Japanese neutrino experiment continue to reveal an inconsistency in the way that matter and antimatter behave.
How the Hidden Higgs Could Reveal Our Universe’s Dark Sector
The universe has not cooperated with physicists’ hopes. In desperation, many are looking for new ways to search for surprises at the Large Hadron Collider.
Janet Conrad, Seeker of Neutrinos and Other Curiosities
The physicist and curios collector hopes to reveal the hidden structure lurking in the subatomic world.
Roberto Peccei and Helen Quinn, Driving Around Stanford in a Clunky Jeep
The two physicists who introduced Peccei-Quinn symmetry came up with their idea on and around Stanford University’s campus 40 years ago.
Dark Matter Recipe Calls for One Part Superfluid
A different kind of dark matter could help to resolve an old celestial conundrum.
Grand Unification Dream Kept at Bay
Physicists have failed to find disintegrating protons, throwing into limbo the beloved theory that the forces of nature were unified at the beginning of time.
On a Hunt for a Ghost of a Particle
Janet Conrad has a plan to catch the sterile neutrino — an elusive particle, possibly glimpsed by a number of experiments, that would upend what we know about the subatomic world.
Strange Numbers Found in Particle Collisions
An unexpected connection has emerged between the results of physics experiments and an important, seemingly unrelated set of numbers in pure mathematics.