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Don’t call it toponium

04/01/25
Sarah Charley

A large and unexpected excess of top quark pairs has the physics community excited, but the interpretation is still up for debate.

12/01/07

Entering Higgs habitat

A powerful new collider will allow scientists to explore the territory where the long-sought Higgs particle—maybe even a whole family of them—resides.

12/01/07

Life among the physics tribes

Meeting in CERN’s Restaurant 1, anthropologist Arpita Roy of the University of California, Berkeley is quick to declare that she will not be having any more coffee today. She has begun drinking multiple cups per day as she meets with CERN physicists to learn about their work.

Simulation showing a spray of particles created in a particle collision
12/01/07

Protecting the LHC from itself

Scientists at CERN have crafted the world’s most sophisticated machine protection system to save the LHC from itself.

12/01/07

Spartan software

Every time Fermilab scientist Tom Schwarz starts up SpartyJet, he inwardly grimaces. The computer program works well. It does a fine job of finding and recording jets—sprays of subatomic particles that emerge from collisions involving protons.

12/01/07

LHC cabling

It’s heavy, dusty, dirty work: Deep in the bowels of the LHC detectors, workers are rushing to connect a rat’s nest of cables.

An illustration depicting scale differences
12/01/07

Terascale

The Terascale is an energy region named for the tera, or million million, electronvolts of energy needed to access it. Physicists are standing at its threshold, poised to enter this uncharted territory of the subatomic world.

12/01/07

Connecting with Africa

ATLAS, a particle physics experiment at CERN’s Large Hadron Collider, boasts 2000-plus members from 35 countries. But on a map showing where those members come from, one continent is almost mark-free: Africa.

12/01/07

Q&A: James Gillies

Hollywood directors, time travelers, journalists, school kids—CERN’s press office sees them all.

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