A Uniform Description of the States Recently Observed at B-factories

Details A Uniform Description of the States Recently Observed at B-factories A Uniform Description of the States Recently Observed at B-factories

2007-09-26

arxiv.org/abs/0709.4066v2

J.Phys.G35:075008,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages in Latex. to appear in J.Phys.G

Scientific paper

10.1088/0954-3899/35/7/075008

The newly found states Y(4260), Y(4361), Y(4664) and Z$^\pm$(4430) stir broad interest in the study of spectroscopy in a typical charmonium scale. The Y(4260) which was observed earlier has been interpreted as hybrid, molecular state, and baryonium, etc. In this note we show for the first time that these new structures, which are hard to be interpreted as charmonium states, can be systematically embedded into an extended baryonium picture. According to this assignment, the so far known characters of these states are understandable. And, in the same framework, we make some predictions for experimenters to measure in the future.

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