Particle Physics

Two teams have demonstrated new degrees of quantum measurements in micron-sized metal drums

New radio-based observatories could soon detect ultrahigh-energy neutrinos, opening a new window on extreme cosmic physics

The discrepancy between the theoretical prediction and the experimentally determined value of the muon’s magnetic moment has become slightly stronger with a new result from Fermilab. But what does it mean?

Initial data from the Muon g-2 experiment have excited particle physicists searching for undiscovered subatomic particles and forces

Muons and electrons might not experience the same fundamental interactions, contrary to Standard Model predictions

Just because a mathematical formula works does not mean it reflects reality

One of the most basic processes in all of nature—a subatomic particle’s transition between discrete energy states—is surprisingly complex and sometimes predictable, recent work shows

The Chinese JUNO experiment will aim to answer a mystery about the particles’ mass

The story of a macroscopic quantum system and a mathematical odyssey

New evidence from neutrinos points to one of several theories about why the cosmos is made of matter and not antimatter

But more data are needed before physicists know for sure

Physicists have found a way the theory might limit the cosmic inflation that is thought to have expanded the early universe