FRAGMENT FLOW IN AU+AU COLLISIONS

被引：107

作者：

PARTLAN, MD

ALBERGO, S

BIESER, F

BRADY, FP

CACCIA, Z

CEBRA, D

CHACON, AD

CHANCE, J

CHOI, Y

COSTA, S

ELLIOTT, JB

GILKES, ML

HAUGER, JA

HIRSCH, AS

HJORT, EL

INSOLIA, A

JUSTICE, M

KEANE, D

KINTNER, J

LISA, MA

MATIS, HS

MCMAHAN, M

MCPARLAND, C

OLSON, DL

PEILERT, G

PORILE, NT

POTENZA, R

RAI, G

RASMUSSEN, J

RITTER, HG

ROMANSKI, J

ROMERO, JL

RUSSO, GV

SCHARENBERG, RP

SCOTT, A

SHAO, Y

SRIVASTAVA, BK

SYMONS, TJM

TINCKNELL, ML

TUVE, C

WANG, S

WARREN, PG

WIEMAN, HH

WOLF, K

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[2] KENT STATE UNIV,KENT,OH 44242

[3] PURDUE UNIV,W LAFAYETTE,IN 47907

[4] UNIV CALIF DAVIS,DAVIS,CA 95616

[5] TEXAS A&M UNIV,COLLEGE STN,TX 77843

[6] UNIV CATANIA,CATANIA,ITALY

[7] INST NAZL FIS NUCL,CATANIA,ITALY

[8] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.75.2100

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Exclusive measurements have been made of Au+Au reactions with beam energies ranging from 0.25A to 1.15A GeV. We present measurements of directed collective flow averaged over all light fragments with masses up to alphas, as veil as separate measurements for protons, deuterons, tritons, He-3, He-4, acid Li. The results show a strong increase of the directed how with fragment mass at all energies measured. Experimental results are compared with a quantum molecular dynamics model. We find that neither the ''soft'' nor the ''hard'' equation of state can describe the data over the entire range of beam energies.

引用

页码：2100 / 2103

页数：4

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