The $e^+e^-\to J/ψD \bar D$, $J/ψD\bar D^*$ reactions with dynamically generated resonances

Details The $e^+e^-\to J/ψD \bar D$, $J/ψD\bar D^*$ reactions with dynamically generated resonances The $e^+e^-\to J/ψD \bar D$, $J/ψD\bar D^*$ reactions with dynamically generated resonances

2008-04-14

arxiv.org/abs/0804.2172v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Prepared for the Workshop on Scalar Mesons in Lisbon, 11-16 February 2008

Scientific paper

10.1063/1.2973528

In two recent reactions by Belle producing $D\bar D$ and $D\bar D^*$ meson pairs, peaks above threshold have been measured in the differential cross sections, possibly indicating new resonances in these channels. We want to study such reactions from the point of view that the $D$ meson pairs are produced from already known or predicted resonances below threshold. Our study shows that the peak in the $D\bar D^*$ production is not likely to be caused by the X(3872) resonance, but the peak seen in $D\bar D$ invariant mass can be well described if the $D\bar D$ pair comes from the already predicted scalar X(3700) resonance.

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