Measurement of charm production cross sections ine+e−annihilation at energies between 3.97 and 4.26 GeV

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Abstract

Using the CLEO-c detector at the Cornell Electron Storage Ring, we have measured inclusive and exclusive cross sections for the production of ${D}^{+}$, ${D}^{0}$ and ${D}_{s}^{+}$ mesons in ${e}^{+}{e}^{\ensuremath{-}}$ annihilations at 13 center-of-mass energies between 3.97 and 4.26 GeV. Exclusive cross sections are presented for final states consisting of two charm mesons ($D\overline{D}$, ${D}^{*}\overline{D}$, ${D}^{*}{\overline{D}}^{*}$, ${D}_{s}^{+}{D}_{s}^{\ensuremath{-}}$, ${D}_{s}^{*+}{D}_{s}^{\ensuremath{-}}$, and ${D}_{s}^{*+}{D}_{s}^{*\ensuremath{-}}$) and for processes in which the charm-meson pair is accompanied by a pion. No enhancement in any final state is observed at the energy of the $Y(4260)$.

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