Deep in the heart of the matter, some numbers don't add up. For example, while protons and neutrons are made of quarks, nature's fundamental building blocks bound together by gluons, their masses are ...

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 ...

Results from KATRIN and MicroBooNE strongly disfavour a light sterile-neutrino explanation of longstanding anomalies.

NEWPORT NEWS, VA – Nuclear physicists may have finally pinpointed where in the proton a large fraction of its mass resides. A recent experiment carried out at the U.S. Department of Energy’s Thomas ...

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 ...