Excess dileptons in high-energy nucleus-nucleus collisions

被引：10

作者：

Wong, CY ^{[1
]}

Wang, ZQ ^{[1
]}

机构：

[1] CHINA INST ATOM ENERGY,BEIJING,PEOPLES R CHINA

来源：

PHYSICS LETTERS B | 1996年 / 367卷 / 1-4期

关键词：

proton-nucleus reaction; heavy-ion reaction; dilepton; charm;

D O I：

10.1016/0370-2693(95)01471-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It has been observed recently that while continuum dilepton production and open charm production in high-energy pA collisions can be described in terms of the superposition of pp collisions, dilepton yields in S+U collisions are in excess of similar extrapolations. This feature can be explained as arising from the interaction of gluons produced in different soft baryon-baryon collisions, leading to additional open-charm pairs in nucleus-nucleus collisions but not in pA collisions.

引用

页码：50 / 54

页数：5

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