Quark Pauli blocking in a simplified quark cluster model produces a repulsive barrier and short-range attraction, giving a non-resonant rapid rise and node in J/psi J/psi and J/psi eta_c phase shifts near 6.4 GeV.
Observation of structure in the 饾惤/饾湏 -pair mass spectrum
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Di-$J/\psi$ structures from the quark Pauli-blocking effect
Quark Pauli blocking in a simplified quark cluster model produces a repulsive barrier and short-range attraction, giving a non-resonant rapid rise and node in J/psi J/psi and J/psi eta_c phase shifts near 6.4 GeV.