物理学
介子
The LHCb team tracked how these particles decayed further into either the matter or antimatter version of particles called kaons.
BBC: Antimatter results emerge at LHC - but puzzle abides
When a D0-meson decays, it produces daughter particles called pions and kaons.
ECONOMIST: Are matter and antimatter truly opposites?
Even by the generous standards of quantum physics, kaons are weird creatures.
ECONOMIST: What??s the matter?
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