The Delta-Statistics of Uncoventional Quarkonium-like Resonances

Details The Delta-Statistics of Uncoventional Quarkonium-like Resonances The Delta-Statistics of Uncoventional Quarkonium-like Resonances

2011-06-22

arxiv.org/abs/1106.4497v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 4 figures

Scientific paper

In this note we address the problem of unconventional charmonium-like states from the standpoint of level spacing theory. The level distribution of the newly discovered vector resonances is compared to that of standard charmonia analyzing their spectral rigidities. It is found that the unconventional charmonium-like states are significantly more compatible with the hypothesis of being levels from a Gaussian Orthogonal Ensamble of Random Matrices than the standard ones, which in turn seem more likely to be Poisson distributed. We discuss the consequences of this result and draw some hints for future investigations.

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