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Title: ELLIPTIC FLOW, INITIAL ECCENTRICITY AND ELLIPTIC FLOW FLUCTUATIONS IN HEAVY ION COLLISIONS AT RHIC.

Abstract

We present measurements of elliptic flow and event-by-event fluctuations established by the PHOBOS experiment. Elliptic flow scaled by participant eccentricity is found to be similar for both systems when collisions with the same number of participants or the same particle area density are compared. The agreement of elliptic flow between Au+Au and Cu+Cu collisions provides evidence that the matter is created in the initial stage of relativistic heavy ion collisions with transverse granularity similar to that of the participant nucleons. The event-by-event fluctuation results reveal that the initial collision geometry is translated into the final state azimuthal particle distribution, leading to an event-by-event proportionality between the observed elliptic flow and initial eccentricity.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
921929
Report Number(s):
BNL-79569-2007-CP
R&D Project: 08861; KB-02-01-021; TRN: US0800830
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: LAKE LOUISE WINTER INSTITUTE 2007; ALBERTA, CANADA; 20070219 through 20070224
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; DISTRIBUTION; FLUCTUATIONS; GEOMETRY; HEAVY IONS; NUCLEONS; BROOKHAVEN RHIC

Citation Formats

NOUICER,R., ALVER, B., BACK, B.B., BAKER, M.D., BALLINTIJN, M., BARTON, D.S., and ET AL. ELLIPTIC FLOW, INITIAL ECCENTRICITY AND ELLIPTIC FLOW FLUCTUATIONS IN HEAVY ION COLLISIONS AT RHIC.. United States: N. p., 2007. Web.
NOUICER,R., ALVER, B., BACK, B.B., BAKER, M.D., BALLINTIJN, M., BARTON, D.S., & ET AL. ELLIPTIC FLOW, INITIAL ECCENTRICITY AND ELLIPTIC FLOW FLUCTUATIONS IN HEAVY ION COLLISIONS AT RHIC.. United States.
NOUICER,R., ALVER, B., BACK, B.B., BAKER, M.D., BALLINTIJN, M., BARTON, D.S., and ET AL. Mon . "ELLIPTIC FLOW, INITIAL ECCENTRICITY AND ELLIPTIC FLOW FLUCTUATIONS IN HEAVY ION COLLISIONS AT RHIC.". United States. doi:. https://www.osti.gov/servlets/purl/921929.
@article{osti_921929,
title = {ELLIPTIC FLOW, INITIAL ECCENTRICITY AND ELLIPTIC FLOW FLUCTUATIONS IN HEAVY ION COLLISIONS AT RHIC.},
author = {NOUICER,R. and ALVER, B. and BACK, B.B. and BAKER, M.D. and BALLINTIJN, M. and BARTON, D.S. and ET AL.},
abstractNote = {We present measurements of elliptic flow and event-by-event fluctuations established by the PHOBOS experiment. Elliptic flow scaled by participant eccentricity is found to be similar for both systems when collisions with the same number of participants or the same particle area density are compared. The agreement of elliptic flow between Au+Au and Cu+Cu collisions provides evidence that the matter is created in the initial stage of relativistic heavy ion collisions with transverse granularity similar to that of the participant nucleons. The event-by-event fluctuation results reveal that the initial collision geometry is translated into the final state azimuthal particle distribution, leading to an event-by-event proportionality between the observed elliptic flow and initial eccentricity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Feb 19 00:00:00 EST 2007},
month = {Mon Feb 19 00:00:00 EST 2007}
}

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