particle physics

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

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

The physicist Asimina Arvanitaki is thinking up ways to search gravitational wave data for evidence of dark matter particles orbiting black holes.

Rampant rumors and a new analysis undercut hopes of a major discovery at the Large Hadron Collider.

A group of little-known Hungarian physicists claim to have found a new fundamental particle. Now other researchers are raising questions about the team’s past work.

A lab in Hungary has reported an anomaly that could lead to a physics revolution. But even as excitement builds, closer scrutiny has unearthed a troubling backstory.

Nima Arkani-Hamed is championing a campaign to build the world’s largest particle collider, even as he pursues a new vision of the laws of nature.

The physicist James Bullock explains how a complicated “dark sector” of interacting particles may illuminate some puzzling observations of the centers of galaxies.

Explore the deepest mysteries at the frontier of fundamental physics, and the most promising ideas put forth to solve them.