Proceedings of the CHARM 2007 Workshop , Ithaca , NY , August 5 - 8 , 2007 1 Double cc production in e + e − annihilations at high energy
نویسنده
چکیده
We review the current state of experimental knowledge on double cc production in e+e− annihilation. The large cross-sections (O(20 fb)) for e+e− → γ∗ → ψ(′) (cc)res processes have been confirmed by detailed tests and reproduced by a second group: they should now be considered well-established. The latest experimental results concern the case where the second cc system is above open-charm threshold: hidden-charm states continue to play a prominent role in the mass spectrum. Some “loose ends” in the field are also briefly discussed.
منابع مشابه
Double cc production in e + e − annihilations at high energy
We review the current state of experimental knowledge on double cc production in e+e− annihilation. The large cross-sections (O(20 fb)) for e+e− → γ∗ → ψ(′) (cc)res processes have been confirmed by detailed tests and reproduced by a second group: they should now be considered well-established. The latest experimental results concern the case where the second cc system is above open-charm thresh...
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