The X(4260) and possible confirmation of psi(3D), psi(5S), psi(4D), psi(6S) and psi(5D) in J/psi pi+ pi-

Abstract

Data on e+ e- --> J/psi pi+ pi- and the X(4260) enhancement by the BABAR collaboration [ arXiv:hep-ex/0506081, arXiv:0808.1543 ] are analysed by modelling missing signals that should be present in the complete production amplitude with vector quantum numbers in the charmonium region. Thus, it is shown that the data contain evidence for the existence of the psi(5S), the psi(4D), the psi(6S) and the psi(5D) c-cbar vector states, and furthermore a clear indication for the mass and width of the psi(3D). Moreover, it is shown that signs of the psi(3S), psi(2D) and psi(4S) can be observed in the same data. Finally, it is argued that the X(4260) enhancement is not a resonance, but rather a phenomenon connected with the opening of the D(s)(*)-Dbar(s)(*) threshold and the coupling to the J/psi f(0)(980) channel.

arXiv comment9 pages plain LaTeX and 7 figures

References in corpus (10)

• Measurement of e^+e^- to pi^+pi^-J/psi Cross Section via Initial State Radiation at Belle
• Observation of a near-threshold enhancement in the e+e- -->Lambda_c+Lambda_c- cross section using initial-state radiation
• Charmonium Decays of $Y(4260), psi(4160), and psi(4040)
• Four Quark Interpretation of Y(4260)
• Suppressed decay into open charm for the Y(4260) being an hybrid
• Possible Molecular Structure of the Newly Observed Y(4260)
• Charmonium's K2 peak
• Why the f(0)(980) is mostly ssbar
• Is the Y(4260) just a coupled-channel signal?
• The spectrum of charmonium in the Resonance-Spectrum Expansion

Cited by in corpus (14)

• Exotics: Heavy Pentaquarks and Tetraquarks
• The Y(4260) as a $J/\psi K\bar{K}$ system
• Interference effects in the X(4260) signal
• Production of hadron pairs in electron-positron annihilation near the K(+)K(-), D-Dbar, B-Bbar and Lambda(c)(+)-Lambda(c)(-) thresholds
• Topics in Hadron Spectroscopy in 2009
• The Y(4140), X(4260), psi(2D), psi(4S) and tentative psi(3D)
• On the origin of the $Y(4260)$
• Evidence for the psi(5S) and psi(4D) c-cbar vector resonances
• Exes and why Z? Some charming and beautiful observations
• Mass and width of the Upsilon(4S)
• Charmonium Exotic States
• Is Upsilon(10580) really Upsilon(4S)?
• The quark-antiquark spectrum from upside down
• Investigations on the charmless decays of $Y(4260)$