Excitation function of elliptic flow in Au plus Au collisions and the nuclear matter equation of state

被引：143
|
作者：
Andronic, A
Barret, V
Basrak, Z
Bastid, N
Benabderrahmane, L
Berek, G
Caplar, R
Cordier, E
Crochet, P
Dupieux, P
Dzelalija, M
Fodor, Z
Gasparic, I
Grishkin, Y
Hartmann, ON
Herrmann, N
Hildenbrand, KD
Hong, B
Kecskemeti, J
Kim, YJ
Kirejczyk, M
Koczon, P
Korolija, M
Kotte, R
Kress, T
Lebedev, A
Leifels, Y
Lopez, X
Mangiarotti, A
Merschmeyer, M
Neubert, W
Pelte, D
Petrovici, M
Rami, F
Reisdorf, W
de Schauenburg, B
Schüttauf, A
Seres, Z
Sikora, B
Sim, KS
Simion, V
Siwek-Wilczynska, K
Smolyankin, V
Stockmeier, MR
Stoicea, G
Tyminski, Z
Wagner, P
Wisniewski, K
Wohlfarth, D
Xiao, ZG
机构：
[1] Gesell Schwerionenforsch Inst Darmstadt, D-64291 Darmstadt, Germany
[2] Natl Inst Phys & Nucl Engn, Bucharest, Romania
[3] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary
[4] CNRS, IN2P3, Phys Corpusculaire Lab, Clermont Ferrand, France
[5] Univ Clermont Ferrand, Clermont Ferrand, France
[6] Rossendorf Inc, Forschungszentrum Rossendorf EV, IKH, D-01314 Dresden, Germany
[7] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany
[8] Inst Theoret & Expt Phys, Moscow 117259, Russia
[9] Kurchatov Inst, Moscow, Russia
[10] Korea Univ, Seoul 136701, South Korea
[11] Univ Strasbourg, CNRS, IN2P3, Inst Rech Subatom, Strasbourg, France
[12] Warsaw Univ, Inst Expt Phys, Warsaw, Poland
[13] Rudjer Boskovic Inst, Zagreb, Croatia
来源：
PHYSICS LETTERS B | 2005年 / 612卷 / 3-4期
关键词：
elliptic flow; compressed nuclear matter; equation of state;
D O I：
10.1016/j.physletb.2005.02.060
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present measurements of the excitation function of elliptic flow at midrapidity in Au + Au collisions at beam energies from 0.09 to 1.49 GeV per nucleon. For the integral flow, we discuss the interplay between collective expansion and spectator shadowing for three centrality classes. A complete excitation function of transverse momentum dependence of elliptic flow is presented for the first time in this energy range, revealing a rapid change with incident energy below 0.4 A GeV, followed by an almost perfect scaling at the higher energies. The equation of state of compressed nuclear matter is addressed through comparisons to microscopic transport model calculations. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：173 / 180
页数：8
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