When fundamental particles are heavier or lighter than expected, physicists' understanding of the universe can tip into the unknown. A particle that is just beyond its predicted mass can unravel ...

Particle accelerators reveal the heart of nuclear matter by smashing together atoms at close to the speed of light. The high-energy collisions produce a shower of subatomic fragments that scientists ...

A pair of rare particles produced in high-energy proton collisions may be the clearest evidence yet that mass can emerge from empty space. The finding could shed light on one of the biggest puzzles in ...

Tens of kilometers above Earth's surface, high-energy particles from outer space constantly strike the atmosphere, creating ...

When it comes to particle physics, Tova Holmes has been there, done that and got the T-shirt – in fact, she designed the T-shirt herself. It all started back in 2022, when she and a few colleagues ...

"This is the first time we have observed, for a large interval in momentum and for multiple species, this flow pattern in a subset of proton collisions in which an unusually large number of particles ...

Deep inside every atom lies a restless world of quarks and gluons—the tiny building blocks that hold everything together, from rocks to stars. For decades, physicists have tried to understand how ...

A model for the structure of the electron is proposed, in which the electron is composed of electric tripole, i.e., a +1 ...

Theorists have found that a “warm” version of cosmic inflation is consistent with known physics, linking it to the hunt for dark matter ...