Scientists discover heavier version of proton with upgraded detector

Snappily named Xi-cc-plus, Cern physicists spotted the particle in shower of debris that lit up Large Hadron Collider Scientists at the Cern nuclear physics laboratory near Geneva have discovered a heavier version of the proton, the subatomic particle that sits at the heart of every known atom in the universe. They spotted the particle in a shower of debris that lit up a detector at the Large Hadron Collider (LHC), located deep beneath the ground at Cern, which smashes protons together at cl...

By Ian Sample Science editor