Physicists on the CMS experiment announce the most elaborate mass measurement of a particle that is notoriously difficult to study and has captivated the physics community for decades. After an ...

The signature of neutrino mass appears as a corresponding reduction in the maximum energy detected, which is the endpoint of the decay spectrum. By precisely measuring this upper end of the spectrum, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A big, electron-counting machine has indirectly turned up a measurement of the slipperiest known ...

Researchers from the KATRIN (Karlsruhe Tritium Neutrino) experiment report the most precise measurement of the upper mass limit of the neutrino to date, establishing it as 0.45 electron volts (eV) – ...

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 ...

Humble neutrinos — electrically neutral particles that glide through the universe, unaffected by the forces of nature — have helped to shape the cosmos. They play a role in nuclear fusion, radioactive ...

Nuclear physicists may have finally pinpointed where in the proton a large fraction of its mass resides. A recent experiment has revealed the radius of the proton's mass that is generated by the ...

The Compact Muon Solenoid detector is located 100 meters underground on the Franco-Swiss borderer at CERN and collects data from the Large Hadron Collider. The detector has been operational since 2010 ...