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Patrick Koppenburg 🐧
koppenburg.ch
did:plc:3327emtnabbhassdfga7qxbz
Congrats to @atlasexperiment.bsky.social for the observation the Bc*⁺ meson. It's hadron number 82 at the LHC. It's been 14 year since ATLAS reported the first new particle observed at the LHC, the χb(3P).
All hadrons are at www.koppenburg.ch/particles.html
Preprint: arxiv.org/abs/2605.16228
2026-05-18T07:28:08.966Z