J/PSI SUPPRESSION AS EVIDENCE FOR HIGH-DENSITIES IN NUCLEAR COLLISIONS

被引：33

作者：

GAVIN, S

SATZ, H

THEWS, RL

VOGT, R

机构：

[1] UNIV BIELEFELD, FAK PHYS, D-33501 BIELEFELD, GERMANY

[2] GSI DARMSTADT, D-64291 DARMSTADT, GERMANY

[3] CERN, DIV THEORY, CH-1211 GENEVA 23, SWITZERLAND

[4] UNIV ARIZONA, DEPT PHYS CHEM, TUCSON, AZ 85721 USA

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1994年 / 61卷 / 02期

关键词：

D O I：

10.1007/BF01413115

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 determine the hadron density necessary to account for J/psi suppression in nuclear collisions by absorption, including the effects of nuclear stopping and J/psi formation time. The suppression measured in central 200 GeV/A O-U and S-U collisions cannot be obtained from interactions of the J/psi with the primary nucleons alone. Absorption on primary and secondary hadrons can describe these data, however, provided the density of the secondaries is at least 0.8 fm-3 i.e., five times standard nuclear density.

引用

页码：351 / 355

页数：5

共 37 条

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