ON THE CONCEPT OF THE J/PSI FORMATION TIME IN QUARK-GLUON PLASMA

被引：16

作者：

CERNY, V

HORVATH, I

LIETAVA, R

NOGOVA, A

PISUT, J

机构：

[1] UNIV HELSINKI, DEPT THEORET PHYS, SF-00170 HELSINKI 17, FINLAND

[2] COMENIUS UNIV, DEPT PHYS, CS-84215 BRATISLAVA, CZECHOSLOVAKIA

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1990年 / 46卷 / 03期

关键词：

D O I：

10.1007/BF01621037

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We analyze the rate with which the J/ψ content of an originally narrow wave packet of charmed quark-antiquark pair is diminishing in a medium which screens colour charges. The J/ψ content decreases to 50% within a typical time of 0.2-0.3 fm. Taking this into account, we find the pT-dependence of J/ψ suppression by quark-gluon plasma to be much flatter than in simplified calculations based on the semi-classical picture of J/ψ formation time. © 1990 Springer-Verlag.

引用

页码：481 / 488

页数：8

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