Charmonium Production in $e^+e^-$ Annihilation at $\sqrt{s}=10.6GeV$
arXiv:hep-ph/0209189 · doi:10.1016/S0920-5632(02)01980-1
Abstract
We review the charmonium production in $e^+e^-$ annihilation at $\sqrt{s}=10.6GeV$. NRQCD predictions for the $J/Ï$ production are compared with the recent measurements by BaBar and Belle. A NRQCD calculation for the $D$-wave charmonium production is reported to further test the color-octet mechanism and detect the $J^{PC}=2^{--}$ state. The issue of double $c \bar c$ production in $e^+e^-$ annihilation observed by Belle is also discussed.
4 pages, 2 figures, talk given at 5th International Conference on Hyperons, Charm and Beauty Hardons (BEACH 2002), Vancouver, Canada, June 25-29