LHCb Finds Proton-Like Baryon With Two Charm Quarks
TL;DR Summary
At CERN, the LHCb collaboration announced the discovery of a proton‑like baryon made of two charm quarks and one down quark, about four times the proton’s mass, observed with 7-sigma significance in Run 3 data; it’s the second baryon with two heavy quarks and a key test for quantum chromodynamics, including a shorter lifetime than the up-quark counterpart, and follows upgrades to the LHCb detector completed in 2023.
- LHCb Collaboration discovers new proton-like particle Home | CERN
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- New particle discovered by Large Hadron Collider France 24
- University of Manchester scientists play key role in discovery of new heavy-proton particle at CERN The University of Manchester
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