Double ccbar production in e+e- annihilations at high energy

Details Double ccbar production in e+e- annihilations at high energy Double ccbar production in e+e- annihilations at high energy

2007-12-19

arxiv.org/abs/0712.3183v1

ECONF C070805:03,2007

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages, 5 figures. To be published in the proceedings of CHARM07, Ithaca, NY, August 2007, eConf C070805

Scientific paper

We review the current state of experimental knowledge on double ccbar production in e+e- annihilation. The large cross-sections (O(20 fb)) for e+e- -> gamma* -> psi(') ccbar_{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 ccbar 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.

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