b meson
noun Physics.
- a meson composed of a bottom quark and an up or down antiquark or of a bottom antiquark and an up or down quark.
A challenge to lepton universality in B-meson decays | Nature
Difference in direct charge-parity violation between charged and
Chasing after elusive B meson decays into muons | ATLAS Experiment
ATLAS Experiment releases new study of ultra-rare B-meson decay
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