Physicists just saw quarks make waves in the Big Bang’s primordial soup
Summary
CERN researchers found the clearest evidence yet that quark-gluon plasma behaves as a liquid. Quarks moving through the plasma produced ripples and wakes, showing that the dense matter can slow particles and respond collectively.
The key result is direct evidence that individual quarks interact strongly enough with the plasma
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It gives researchers a new experimental handle on the earliest state of matter in the universe.