b meson
/ˈbiː ˌmiːzɑn/
noun
- A subatomic particle made of a bottom quark and another quark, studied in particle physics.
- Experiments with b-mesons help physicists understand why matter dominates antimatter.
- The b-meson is heavier than many other mesons because it contains a bottom quark.
- Scientists at the lab observed the decay of a b-meson to test the Standard Model.