What's up in

particle physics

An animation of a particle collision
Abstractions blog

The Mathematical Structure of Particle Collisions Comes Into View

August 20, 2020

Physicists have identified an algebraic structure underlying the messy mathematics of particle collisions. Some hope it will lead to a more elegant theory of the natural world.

Animated illustration of a hand emerging from a black hole, while drawing the black hole by connecting dots flashing 0 and 1.
Quantized Columns

Spotting Quantum Black Holes in the Lab

July 15, 2020

Can we test speculations about how quantum physics affects black holes and the Big Bang?

The XENON1T detector’s time projection chamber.
Abstractions blog

Dark Matter Experiment Finds Unexplained Signal

June 17, 2020

Researchers say there are three possible explanations for the anomalous data. One is mundane. Two would revolutionize physics.

Lines representing paths of particles fan out from a point and pass through a series of detectors.
Abstractions blog

Growing Anomalies at the Large Hadron Collider Raise Hopes

May 26, 2020

Collider physicists report that several measurements of particles called B mesons deviate from predictions. Alone, each oddity looks like a fluke, but their collective drift is more suggestive.

Three particles moving closer together then farther apart. The region between them appears in green.
Abstractions blog

What Goes On in a Proton? Quark Math Still Conflicts With Experiments.

May 6, 2020

Two ways of approximating the ultra-complicated math that governs quark particles have recently come into conflict, leaving physicists unsure what their decades-old theory predicts.

Abstractions blog

Neutrino Asymmetry Passes Critical Threshold

April 15, 2020

The first official evidence of a key imbalance between neutrinos and antineutrinos provides one of the best clues for why the universe contains something rather than nothing.

Abstractions blog

Why Do Matter Particles Come in Threes? A Physics Titan Weighs In.

March 30, 2020

Three progressively heavier copies of each type of matter particle exist, and no one knows why. A new paper by Steven Weinberg takes a stab at explaining the pattern.

Swirling video.
Abstractions blog

Axions Would Solve Another Major Problem in Physics

March 17, 2020

In a new paper, physicists argue that hypothetical particles called axions could explain why the universe isn’t empty.

An overhead shot of an engineer working on a metal tank with pipes and cables coming out of it.
Abstractions blog

Top Dark Matter Candidate Loses Ground to Tiniest Competitor

November 27, 2019

Physicists have long searched for hypothesized dark matter particles called WIMPs. Now, focus may be shifting to the axion — an ultra-lightweight particle whose existence would solve two mysteries at once.