Observation of Zc(3900), a state with at least four quarks (IMAGE)

Science China Press

Observation of Zc(3900), a state with at least four quarks

Caption

On the left, the bands shown in the Dalitz plot correspond to states decaying into a pair of pions or one pion and one J/ψ. On the right is the Zc(3900) signal appears as a peak at around 3.9 GeV/c2.

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©Science China Press

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