Hidden charm dynamically generated resonances and the $e^{+}{e}^{-}\to J/\psi D\bar{D}$, $J/\psi D{\bar{D}}^{\ast }$ reactions

Abstract

We analyze two recent reactions of Belle, producing $D\bar{D}$ and $D{\bar{D}}^{\ast }$ states that have an enhancement of the invariant $D\bar{D}$, $D{\bar{D}}^{\ast }$ mass distribution close to threshold, from the point of view that they might be indicative of the existence of a hidden charm scalar and an axial vector meson states below $D\bar{D}$ or $D{\bar{D}}^{\ast }$ thresholds, respectively. We conclude that the data is compatible with the existing prediction of a hidden charm scalar meson with mass around 3700 MeV, though other possibilities cannot be discarded. The peak seen in the $D{\bar{D}}^{\ast }$ spectrum above threshold is, however, unlikely to be due to a threshold enhancement produced by the presence, below threshold, of the hidden charm axial vector meson X(3872).

5 pages, 5 figures, 2 tables

References in corpus (12)

• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• Chiral dynamics in the presence of bound states: kaon-nucleon interactions revisited
• Observation of the Narrow State $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ in $\bar{p}p$ Collisions at $\sqrt{s}=1.96 \TeV$
• N/D Description of Two Meson Amplitudes and Chiral Symmetry
• On heavy-light meson resonances and chiral symmetry
• Dynamically Generated Open and Hidden Charm Meson Systems
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Observation of a Near-threshold $D^0{\bar{D}}^0{\pi }^0$ Enhancement in $B\to D^0{\bar{D}}^0{\pi }^{0}K$ Decay
• Dynamically generated 1^+ heavy mesons
• Open-charm meson resonances with negative strangeness
• Axial Resonances in the Open and Hidden Charm Sectors

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