Chaotic motion of the c(c)over-bar system and a new mechanism of J/ψ suppression

被引：0

作者：

Zong, HS

Gu, JZ

Liu, YX

Zhang, XF

Zhao, EG

机构：

[1] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China

[2] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[3] Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 1999年 / 31卷 / 04期

关键词：

J/psi suppression; energy spectrum statistics; color screening; level mixing;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Based on random matrix theory and reduced BS equation, it is found that the regular motion of c (c) over bar 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 J/psi suppression. Moreover, this kind of suppression can occur before the color screening mass reaches its critical value for J/psi dissociation. In addition, it is implied that a strong J/psi suppression is possible in the absence of dissociation of J/psi.

引用

页码：607 / 610

页数：4

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