INTERMITTENCY AND CORRELATIONS IN 200 GEV/NUCLEON S+S AND S+AU COLLISIONS

被引:131
作者
ALBRECHT, R
ANTONENKO, A
AWES, TC
BERGER, F
BLOOMER, MA
BOCK, D
BOCK, R
CLAESSON, G
CLEWING, G
DRAGON, L
EKLUND, A
FOKIN, S
FRANZ, A
GARPMAN, S
GLASOW, R
GUSTAFSSON, HA
GUTBROD, HH
HARTIG, M
HE, X
HOLKER, G
IDH, J
IPPOLITOV, M
JACOBS, P
KAMPERT, KH
KARADJEV, K
KOLB, BW
LEBEDEV, A
LOHNER, H
LUND, I
MANKO, V
NIKOLAEV, S
NYSTRAND, J
OBENSHAIN, FE
OSKARSSON, A
OTTERLUND, I
PEITZMANN, T
PLASIL, F
POSKANZER, AM
PURSCHKE, M
RITTER, HG
ROTERS, B
SAINI, S
SANTO, R
SCHMIDT, HR
SODERSTROM, K
SORENSEN, SP
STEFFENS, K
STEINHAUSER, P
STENLUND, E
STUKEN, D
机构
[1] KURCHATOV INST, 123182 MOSCOW, RUSSIA
[2] OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA
[3] UNIV MUNSTER, D-48149 MUNSTER, GERMANY
[4] LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA
[5] LUND UNIV, S-22362 LUND, SWEDEN
[6] UNIV TENNESSEE, KNOXVILLE, TN 37996 USA
[7] UNIV GRONINGEN, KERNFYS VERSNELLER INST, 9747 AA GRONINGEN, NETHERLANDS
来源
PHYSICAL REVIEW C | 1994年 / 50卷 / 02期
关键词
D O I
10.1103/PhysRevC.50.1048
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
We have studied one- and two-dimensional scaled factorial moments in S-32+S and S-32+Au collisions at 200 GeV/nucleon in a high statistics electronic measurement at the CERN SPS using pad-readout streamer tubes. We observe no intermittency signal beyond that produced by folding the FRITIOF event generator with a detailed model of our detector. The systematic effects of detector response, two-track separation, and finite statistics in a factorial moment analysis are discussed in detail. Even though the observed signal contains measurable distortions due to these experimental effects, we show that we are sensitive to intermittency. As an alternative method, a two-particle correlation function analysis was applied to the same data to measure correlated particle production at small scales. We show that this method does not suffer as much as the factorial moment analysis does from distortions due to the limited two-track resolution of the detector. The correlation functions also agree with the predictions of FRITIOF filtered through our detector simulation, down to the limit of the two-track resolution. Since FRITIOF models nucleus-nucleus collisions by the superposition of nucleon-nucleon collisions, we conclude that there is no evidence in our data of the kinds of collective behavior predicted to give strong intermittency in heavy ion collisions.
引用
收藏
页码:1048 / 1064
页数:17
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