After years of confusion, a new study confirms the proton is tinier than once thought. That enables a test of the standard model of particle physics.

The ALPHA collaboration at CERN reports an important milestone on the way to measuring the properties of antimatter atoms. This follows news reported in June last year that the collaboration had ...

Just over a week ago, European physicists announced they had measured the strength of gravity on the smallest scale ever. In a clever tabletop experiment, researchers at Leiden University in the ...

For decades scientists have tried to find a way to measure the mass of the lightest matter particle known to exist. Three new approaches now have a chance to succeed. In 1980, Hamish Robertson was a ...

The project aims to establish new experimental techniques for high precision measurement and control of laser-cooled trapped ions. Some of the associates responsibilities include but are not limited ...

Miniscule, invisible neutrino particles are ubiquitous but nearly impossible to catch. They fly though the Earth—and us—every moment, by the billions. They are the smallest known matter particles in ...