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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/52745


    Title: Event-by-Event Fluctuations of Azimuthal Particle Anisotropy in Au plus Au Collisions at root s(NN)=200 GeV
    Authors: Alver,B;Back,BB;Baker,MD;Ballintijn,M;Barton,DS;Betts,RR;Bickley,AA;Bindel,R;Busza,W;Carroll,A;Chai,Z;Decowski,MP;Garcia,E;Gburek,T;George,N;Gulbrandsen,K;Halliwell,C;Hamblen,J;Hauer,M;Henderson,C;Hofman,DJ;Hollis,RS;Holynski,R;Holzman,B;Iordanova,A;Johnson,E;Kane,JL;Khan,N;Kulinich,P;Kuo,CM;Li,W;Lin,WT;Loizides,C;Manly,S;Mignerey,AC;Nouicer,R;Olszewski,A;Pak,R;Reed,C;Roland,C;Roland,G;Sagerer,J;Seals,H;Sedykh,I;Smith,CE;Stankiewicz,MA;Steinberg,P;Stephans,GSF;Sukhanov,A;Tonjes,MB;Trzupek,A;Vale,C;van Nieuwenhuizen,GJ;Vaurynovich,SS;Verdier,R;Veres,GI;Walters,P;Wenger,E;Wolfs,FLH;Wosiek,B;Wozniak,K;Wyslouch,B
    Contributors: 物理學系
    Keywords: QUARK-GLUON PLASMA;NUCLEAR COLLISIONS;FLOW;COLLABORATION;PERSPECTIVE
    Date: 2010
    Issue Date: 2012-06-11 10:42:30 (UTC+8)
    Publisher: 國立中央大學
    Abstract: This Letter presents the first measurement of event-by-event fluctuations of the elliptic flow parameter nu(2) in Au + Au collisions root s(NN) = 200 GeV as a function of collision centrality. The relative non-statistical fluctuations of the nu(2) parameter are found to be approximately 40%. The results, including contributions from event-by-event elliptic flow fluctuations and from azimuthal correlations that are unrelated to the reaction plane (nonflow correlations), establish an upper limit on the magnitude of underlying elliptic flow fluctuations. This limit is consistent with predictions based on spatial fluctuations of the participating nucleons in the initial nuclear overlap region. These results provide important constraints on models of the initial state and hydrodynamic evolution of relativistic heavy ion collisions.
    Relation: PHYSICAL REVIEW LETTERS
    Appears in Collections:[物理學系] 期刊論文

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