HIGH PT PIONS AS PROBES OF THE DENSE PHASE OF RELATIVISTIC HEAVY-ION COLLISIONS

被引：45

作者：

BASS, SA

HARTNACK, C

STOCKER, H

GREINER, W

机构：

[1] GESELL SCHWERIONENFORSCH MBH, D-64220 DARMSTADT, GERMANY

[2] LAB PHYS NUCL, NANTES, FRANCE

来源：

PHYSICAL REVIEW C | 1994年 / 50卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.50.2167

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 properties of pions from the hot and dense reaction stage of relativistic heavy ion collisions are investigated with the quantum molecular dynamics model. Pions originating from this reaction stage stem from resonance decay with enhanced mass. They carry high transverse momenta. The calculation shows a direct correlation between high pt pions, early freeze-out times and high freeze-out densities. A measurement of the mass distributions of p - pi correlations (e.g., the DELTA++) in different pt bins is proposed to distinguish different reaction stages.

引用

页码：2167 / 2172

页数：6

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