The old linear accelerator at Stanford was repurposed, turning it from the machine that co-discovered a particle known as the charm quark (thus winning its operators a Nobel prize) into a factory for making particles called B mesons.
ECONOMIST: The arrow of time
B-mesons to turn into their antimatter counterparts and back again, a process known as mixing.
ECONOMIST: Cosmology and particle physics
That is because B-mesons are sometimes born as quantum-mechanically conjoined twins.
B-mesons will sometimes decay in non-complementary ways.
ECONOMIST: What��s the matter?
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