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quantum chromodynamics

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particle physics

‘Last Hope’ Experiment Finds Evidence for Unknown Particles

April 7, 2021

Today’s long-anticipated announcement by Fermilab’s Muon g-2 team appears to solidify a tantalizing conflict between nature and theory. But a separate calculation, published at the same time, has clouded the picture.

A video in which a proton seems to be composed of three particles, but on zooming in, it turns out to be a swirling miasma.
quantum physics

Decades-Long Quest Reveals Details of the Proton’s Inner Antimatter

February 24, 2021

Twenty years ago, physicists set out to investigate a mysterious asymmetry in the proton’s interior. Their results, published today, show how antimatter helps stabilize every atom’s core.

Q&A

A Prodigy Who Cracked Open the Cosmos

January 12, 2021

Frank Wilczek has been at the forefront of theoretical physics for the past 50 years. He talks about winning the Nobel Prize for work he did as a student, his solution to the dark matter problem, and the God of a scientist.

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Abstractions blog

Why the Laws of Physics Are Inevitable

December 9, 2019

By considering simple symmetries, physicists working on the “bootstrap” can rediscover the basic form of the known forces that shape the universe.

Abstractions blog

Physicists Peer Inside a Fireball of Quantum Matter

July 30, 2019

Experimenters in Germany have glimpsed the kind of strange, non-atomic matter thought to fill the cores of merging neutron stars.

Quantized Columns

How Feynman Diagrams Almost Saved Space

July 5, 2016

Richard Feynman’s famous diagrams weren’t just a way to do calculations. They represented a deep shift in thinking about how the universe is put together.