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.

9 pages plain LaTeX and 7 figures

References in corpus (4)

• 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
• Is the Y(4260) just a coupled-channel signal?
• The spectrum of charmonium in the Resonance-Spectrum Expansion

Cited by in corpus (10)

• Exotics: Heavy Pentaquarks and Tetraquarks
• Interference effects in the X(4260) signal
• Topics in Hadron Spectroscopy in 2009
• The Y(4140), X(4260), psi(2D), psi(4S) and tentative psi(3D)
• 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)
• The quark-antiquark spectrum from upside down
• Is Upsilon(10580) really Upsilon(4S)?
• Investigations on the charmless decays of $Y(4260)$