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Theoretical investigations on the Y(4260) being an hybrid meson

F. Iddir·L. Semlala
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Abstract

The new recently experiments at the B-factories yield a renewed interest in the charm and charmonium spectroscopy. New intriguing states have been observed, which appear to be non-conventional mesons, such as X(3862) and Y(4260) and request more theoretical investigations. We will explore the possibility for the Y(4260) to be a c-cbar-g hybrid meson. Using the quark-gluon constituent model, we exclude its existence as QE-hybrid meson, and as mixing of c-cbar-g hybrid with conventional c-cbar meson. We find the only interpretation as GE-hybrid, decaying in D_(1)-Dbar channels. Then more experimental studies are needed to confirm the existence of this resonance and to give its properties.

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F. Iddir, L. Semlala. 2007-12-08. Theoretical investigations on the Y(4260) being an hybrid meson. https://arxiv.org/abs/hep-ph/0611183

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