Direct X(3872) production in e+e- collisions

Abstract

Direct production of the charmonium-like state $X(3872)$ in $e^{+}{e}^{-}$ collisions is considered in the framework of the vector meson dominance model. An order-of-magnitude estimate for the width $\Gamma (X\to e^{+}{e}^{-})$ is found to be $\gtrsim$0.03 eV. The same approach applied to the ${\chi }_{c1}$ charmonium decay predicts the corresponding width of the order 0.1 eV in agreement with earlier estimates. Experimental perspectives for the direct production of the $1^{++}$ charmonia in $e^{+}{e}^{-}$ collisions are briefly discussed.

LaTeX2e, 11 pages, 1 figure, version published in Phys.Lett.B

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• An Improved Limit for Gamma_ee of X(3872) and Gamma_ee Measurement of psi(3686)
• ${\chi }_{c1}$ and ${\chi }_{c2}$ production at $e^{+}{e}^{-}$ colliders
• First Observation of the Direct Production of the ${\chi }_{c1}$ in $e^{+}{e}^{-}$ Annihilation
• Production of the $X(4014)$ as the spin-2 partner of $X(3872)$ in $e^{+}{e}^{-}$ collisions
• Towards a precision determination of the $X(6200)$ parameters from data
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