3770 Þ resonance and its production in p̄p → DD̄
نویسنده
چکیده
The production of a DD̄ meson pair in antiproton-proton (p̄p) annihilation close to the production threshold is investigated, with special emphasis on the role played by the ψð3770Þ 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 ψð3770Þ. The predictions for the DD̄ production cross section are in the range of 30–250 nb, and the contribution from the ψð3770Þ resonance itself amounts to roughly 20–80 nb.
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تاریخ انتشار 2015