Excess production of low-mass lepton pairs in S+Au collisions at the CERN super proton synchrotron and the quark-hadron phase transition

被引：60

作者：

Srivastava, DK

Sinha, B

Gale, C

机构：

[1] SAHA INST NUCL PHYS, Kolkata 700064, W BENGAL, INDIA

[2] MCGILL UNIV, DEPT PHYS, MONTREAL, PQ H3A 2T8, CANADA

来源：

PHYSICAL REVIEW C | 1996年 / 53卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.53.R567

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The mass distribution for excess dielectrons in S+Au collisions at 200A GeV measured by the CERES Collaboration at the CERN Super Proton Synchrotron is analyzed. The data are seen to be in satisfactory agreement with a scenario where a thermalized quark-gluon plasma is formed initially, which expands, cools, hadronizes, and undergoes a freeze-out. The same treatment is also seen to provide a reasonable description for the excess dimuons measured by the HELIOS/3 experiment for S+W collisions.

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页码：R567 / R571

页数：5

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