What are major fruits harvested from charmonium spectroscopy?

Discovery of charm quark,

....


Pls add more ...
 

arivero

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An amazing coincidence is that the reduced decay rate of J/Psi (the decay rate divided by the cube of its mass) coincides with the one of the pion, which is a spin zero composite. This is an unexplored result.


BuckeyePhysicist said:
Discovery of charm quark,

....


Pls add more ...
As for your original question: understanding of QCD
 
Well, I konw we understand QCD better. But could a few specific items be listed, sort of?
 

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