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The spectrum of charmonium in the Resonance-Spectrum Expansion

Authors: E. van Beveren and G. Rupp

Ref.: Bled Workshops in Physics, proceedings of the Mini-Workshop Bled 2008, "Few-Quark States and the Continuum", Bled (Slovenia), September 15-22, 2008 9, 26-29 (2008)

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.

URL: arxiv.org