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ALICE with one door open

Curiouser and curiouser: a riddle at the ALICE detector

12/09/25
Sarah Charley

In 2023, the ALICE experiment was ready for their best year yet, until a mysterious signal threatened everything. As the LHC wraps up its 2025 lead-ion run, physicists recall how they worked together to solve the puzzle.

Drawing by Sam Ehrenstein
07/01/06

From placemat to prodigy

Over a half-eaten burrito or a bowl of spaghetti, Sam Ehrenstein ponders the unanswered questions of fundamental physics. Yet Sam is no experimental physicist or postdoc brooding over his data. Not yet, anyway.

Illustration of a man writing on a chalkboard
07/01/06

Elementary particle physics

Physics has demonstrated that the everyday phenomena we experience are governed by universal principles applying at time and distance scales far beyond normal human experience.

07/01/06

A top gradient for cleanliness

After undergoing a buffered chemical polishing (BCP) treatment at Cornell University, the first US-processed and tested International Linear Collider superconducting cavity achieved a milestone accelerating gradient of 26 MV/m (megavolts per meter)–surpassing the first gradient goal (25 MV/m).

07/01/06

Ellis Paul: Did Galileo pray?

The sighting of Jupiter's moons by Galileo Galilei resonates through science and history. Using a handmade telescope in January 1610, Galileo confirmed the Copernican theory that the planets moved around the sun; the Earth was not the center of the solar system.

07/01/06

Particle physics takes flight

Welcome to SLAC's End Station B, where work on the International Linear Collider (ILC) will help shape the future of particle physics–although some inhabitants don't seem to give a hoot.

07/01/06

Spallation Neutron Source

Neutron scattering research has improved the quality of many everyday items: Shatter-proof windshields, credit cards, pocket calculators, airplanes, compact discs, and magnetic storage tapes are just some examples.

07/01/06

The particle garden

Mesons. Bosons. Pions. Muons. Asparagus. Yes, asparagus. Physicists have spare time, too, and a few of them spend it in Fermilab's Garden Club, with roots almost as old as the lab itself.

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