The spectrum of charmonium in the Resonance-Spectrum Expansion
arXiv:0811.1755
Abstract
We argue that the resonance-like structures Y(4260) (arXiv:hep-ex/0506081,arXiv:0707.2541), Y(4360), Y(4660) (arXiv:0707.3699) and Y(4635) (arXiv:0807.4458), which were recently reported to have been observed in experiment, are non-resonant manifestations of the Regge zeros that appear in the production amplitude of the Resonance-Spectrum Expansion. Charmonium c-cbar states are visible on the slopes of these enhancements.
6 pages plain Latex + 3 figures
References in corpus (7)
- 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
- Evidence that the Y(4660) is a f_0(980)psi' bound state
- Canonical Charmonium Interpretation for Y(4360) and Y(4660)
- Combined fit to BaBar and Belle data on e+e- to pi+pi- psi(2S)
- Coupling constants and transition potentials for hadronic decay modes of a meson
- Is the Y(4260) just a coupled-channel signal?