Intermittency and correlations in 200 GeV/nucleon S+S and S+Au collisions

Journal Article · Mon Aug 01 00:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.1048· OSTI ID:7160797

Albrecht, R; Antonenko, A; Awes, T C; Berger, F; Bloomer, M A; Bock, D; Bock, R; Claesson, G; Clewing, G; Dragon, L; Eklund, A; Fokin, S; Franz, A; Garpman, S; Glasow, R; Gustafsson, H A; Gutbrod, H H; Hartig, M; He, X; Hoelker, G ; Idh, J; Ippolitov, M; Jacobs, P; Kampert, K H; Karadjev, K; Kolb, B W; Lebedev, A; Loehner, H; Lund, I; Manko, V; Nikolaev, S; Nystrand, J; Obenshain, F E; Oskarsson, A; Otterlund, I; Peitzmann, T; Plasil, F; Poskanzer, A M; Purschke, M; Ritter, H; Roters, B; Saini, S; Santo, R; Schmidt, H R; Soederstroem, K; Sorensen, S P; Steffens, K; Steinhaeuser, P; Stenlund, E; Stueken, D; Vinogradov, A; Young, G R ^[1]

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1. Gesellschaft fuer Schwerionenforschung, D-64220 Darmstadt (Germany) Kurchatov Institute, Kurchatov Square, 123182 Moscow (Russian Federation) Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States) University of Muenster, D-48149 Muenster (Germany) Lawrence Berkeley Laboratory, Berkeley,

We have studied one and two-dimensional scaled factorial moments in [sup 32]S+S and [sup 32]S+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.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7160797
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 50:2; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
GOLD 197 TARGET
SULFUR 32 REACTIONS
CORRELATION FUNCTIONS
FRAGMENTATION
SULFUR 32 TARGET
FRACTALS
MOMENTS METHOD
PARTICLES
QUANTUM CHROMODYNAMICS
RELATIVISTIC RANGE
CALCULATION METHODS
CHARGED-PARTICLE REACTIONS
ENERGY RANGE
FIELD THEORIES
FUNCTIONS
HEAVY ION REACTIONS
NUCLEAR REACTIONS
QUANTUM FIELD THEORY
TARGETS
663450* - Heavy-Ion-Induced Reactions & Scattering- (1992-)
663530 - Nuclear Mass Ranges- A=20-38- (1992-)
663580 - Nuclear Mass Ranges- A=190-219- (1992-)
663300 - Nuclear Reactions & Scattering
General- (1992-)