Their discovery could make or break a longstanding theory in physics explaining why our universe looks the way it does ...

The standard model of particle physics works really well, but it can't explain why the universe exists. Something is missing, and this trapped particle might hold a clue to the answer ...

High-temperature superconducting magnet technology achieved a world first at CERN's proposed Future Circular Collider test ...

What is the mass of a neutrino at rest? This is one of the big unanswered questions in physics. Neutrinos play a central role in nature. A team led by Klaus Blaum, Director at the Max Planck Institute ...

In a lab in Illinois, physicists captured and tamed a tiny particle of antimatter in a trap with invisible walls. By studying how the positron behaved, the researchers may soon have a chance to break ...

If the mass of the electron was made significantly lighter or heavier, it would affect not only the size of the atom, but ...

Artist’s conception of the mystery of the magnetic moment of the muon—a sub-atomic particle similar to, but heavier than, an electron (represented by the Greek letter mu). More than half a century of ...

The mysterious Amaterasu particle may not be a proton at all. New research suggests that some of the most extreme cosmic rays could be ultraheavy atomic nuclei, heavier than iron, which are better ...