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Collider

B meson

BRareReal particle, observed in experiments

Fact from the codex

Contains a bottom quark. It is used to study why the universe contains more matter than antimatter.

Data

Appears from ring
Ring 1 · LHC ring

27 km circumference

Rarity
Rare
Mass
5.279 GeV
Threshold
5.279 GeV
Base rate
1.5 %

per collision, before threshold factor and detector boost

Boosted by
Vertex detector

×1.12 frequency per level (+12 %)

Resonance
Tunable as a resonance from ring 7
Source
PDG 2026, Review of Particle Physics, Summary Tables (pdg.lbl.gov/2026)

All particles

Event display of a B meson event, screenshot from the game.
Event display of a B meson event, screenshot from the game.