Cern: scientists discover four new particles – here's why they matter

By Patrick Koppenburg, Research Fellow in Particle Physics, Dutch National Institute for Subatomic Physics
Harry Cliff, Particle physicist, University of Cambridge

This month is a time to celebrate. Cern has just announced the discovery of four brand new particles at the Large Hadron Collider (LHC) in Geneva. This means that the LHC has now found a total of 59 new particles since it started colliding protons – particles that make up the atomic nucleus along with neutrons – in 2009. Excitingly, while some of these new particles were expected based on our established theories, some were…

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