CERN has confirmed the Ξcc⁺, a particle with two charm quarks — something never seen before.
The Ξcc⁺ has 3,621 MeV — almost 4 times the mass of a proton. It's like finding a 'super-proton'.
It could rewrite the Standard Model of physics. For the first time, we see two heavy quarks interacting.
Quarks are the fundamental 'building blocks' of matter. Protons have 2 up + 1 down. The Ξcc⁺ has 2 charm + 1 up.
95% of the universe is dark matter + dark energy. Each new particle is a clue to solving this mystery.
Understand the discovery that could change physics