The $\psi$(3770) resonance and its production in $\bar{p}p\to D\bar{D}$

Abstract

The production of a $D\bar{D}$ meson-pair in antiproton-proton ($\bar{p}p$) annihilation close to the production threshold is investigated, with special emphasis on the role played by the $\psi$(3770) resonance. The study is performed in a meson-baryon model where the elementary charm production process is described by baryon exchange. Effects of the interactions in the initial and final states are taken into account rigorously, where the latter involves also those due to the $\psi$(3770). The predictions for the $D\bar{D}$ production cross section are in the range of 30 -- 250 nb, the contribution from the $\psi$(3770) resonance itself amounts to roughly 20 -- 80 nb.

6 pages, 6 figures

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Cited by in corpus (4)

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• Charmed mesons at finite temperature and chemical potential
• Novel correlated $D^0\overline{D}{}^0$ systems for $c/b$ physics and tests of $T/CPT$
• Heavy-meson chiral Lagrangians, effective flavored couplings, SU(4) flavor breaking and their consequences