Statistical Properties of Charmonium Spectrum and a New Mechanism of J/ψSuppression

Details Statistical Properties of Charmonium Spectrum and a New Mechanism of J/ψSuppression Statistical Properties of Charmonium Spectrum and a New Mechanism of J/ψSuppression

1999-06-23

arxiv.org/abs/nucl-th/9906069v1

Phys.Rev. C60 (1999) 035211

Physics

Nuclear Physics

Nuclear Theory

13 latex pages, 2 figures. Phys. Rev. C in press

Scientific paper

10.1103/PhysRevC.60.035211

The statistical properties of Charmonium energy spectrum determined by the Bethe-Salpeter equation are investigated. It is found that the regular motion of the $c\bar{c}$ system can be expected at a small value of color screening mass but the chaotic motion at a large one. It is shown that the level mixing due to color screening serves as a new mechanism resulting in the J/$\psi$ suppression. Moreover, this kind of suppression can occur before the color screening mass reaches its critical value for J/$\psi$ dissociation. It implies that a strong J/$\psi$ suppression is possible in the absence of dissociation of J/$\psi$.

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