Study of pi pi final state interactions in psi(2S) -> pi(+)pi(-)J/psi
2009
The pi(+)pi(-)transition of heavy quarkonia in decay psi(2S) ->pi(+)pi(-)J/psi is studied. With the BESII data on the decay psi(2S) ->pi(+)pi(-)J/psi, we update the values of coupling constants (g(i)) and chromopolarizability (alpha(psi(2S)J/psi)) in this process.
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