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particle physics

Helen Quinn and Roberto Peccei at Stanford University
Thinking Places

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 superfluid
dark matter

Dark Matter Recipe Calls for One Part Superfluid

A different kind of dark matter could help to resolve an old celestial conundrum.

particle physics

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.

Janet Conrad by Kayana Szymczak
Q&A

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.

mathematical physics

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.

Pencils Down: Experiments in Education

A Wormhole Between Physics and Education

The theoretical particle physicist Helen Quinn has blazed a singular path from the early days of the Standard Model to the latest overhaul of science education in the United States.

Signatories of a bet placed in 2011.
Abstractions blog

Supersymmetry Bet Settled With Cognac

The absence of supersymmetry particles at the Large Hadron Collider has settled a 16-year-old bet among physicists.

particle physics

What No New Particles Means for Physics

Physicists are confronting their “nightmare scenario.” What does the absence of new particles suggest about how nature works?

As neutrinos change “flavors” they may illuminate the differences between matter and antimatter.
particle physics

Neutrinos Hint of Matter-Antimatter Rift

A hint that neutrinos behave differently than antineutrinos suggests an answer to one the biggest questions in physics.