Possible new resonance at the $D^{\ast }{\bar{D}}^{\ast }$ threshold in $e^{+}{e}^{-}$ annihilation

Abstract

We argue that the recent CLEO-c data on $e^{+}{e}^{-}$ annihilation into pairs of charmed mesons at c.m. energy around 4.0 GeV are not well described by a single resonance $\psi (4040)$, but can be better understood if there is an additional narrow resonance with mass within few MeV from the $D^{\ast }{\bar{D}}^{\ast }$ threshold.

9 pages, 1 figure

References in corpus (6)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Variation of the relative yield of charged and neutral B mesons across the Upsilon(4S) resonance
• Relative yield of charged and neutral heavy meson pairs in e^+ e^- annihilation near threshold
• Channel coupling in e+ e- annihilation into heavy meson pairs at the D* {\bar D}* threshold

Cited by in corpus (19)

• The hidden-charm pentaquark and tetraquark states
• Charmonium
• X(3872) and Other Possible Heavy Molecular States
• Is X(3872) {\sl Really} a Molecular State?
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• Measurement of Charm Production Cross Sections in e+e- Annihilation at Energies between 3.97 and 4.26 GeV
• Measurement of the near-threshold $e^{+}{e}^{-}\to D^{(\ast )\pm }D{}^{\ast \mp }$ cross section using initial-state radiation
• Is Z^+(4430) a loosely bound molecular state?
• How Resonances can synchronise with Thresholds
• On the electromagnetic form factors of hadrons in the time-like region near threshold
• The bound state problem of S-wave heavy quark meson-aitimeson systems
• $D\bar{D}$ production and their interactions
• Probing the $XYZ$ states through radiative decays
• Bound States of the Heavy Flavor Vector Mesons and Y(4008) and $Z_1^{+}(4050)$
• $e^{+}{e}^{-}\to \gamma X(3872)$ near the $D^{\ast }{\bar{D}}^{\ast }$ threshold
• Understanding the newly observed Y(4008) by Belle
• Colloquium: Hadron Production in Open-charm Meson Pair at $e^{+}{e}^{-}$ Collider
• Status and Prospects of Exotic Hadrons at Belle II
• Mixing of partial waves near $B^{\ast }{\bar{B}}^{\ast }$ threshold in $e^{+}{e}^{-}$ annihilation