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 ColliderScientists 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 close to the speed of light. The collisions recreate in microcosm conditions that prevailed just after th...