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System Size and Centrality Dependence of the Balance Function in A + A Collisions at sqrt(sNN) = 17.2 GeV

(NA49 Collaboration) Alt, C; Anticic, T; Baatar, B; Barna, D; Bartke, J; Betev, L; Bialkowska, H; Billmeier, A; Blume, C; Boimska, B; Botje, M; Bracinik, J; Bramm, R; Brun, R; Buncic, P; Cerny, V; Christakoglou, P; Chvala, O; Cramer, JG; Csato, P; Darmenov, N; Dimitrov, A; Dinkelaker, P; Eckardt, V; Farantatos, G; Flierl, D; Fodor, Z; Foka, P; Freund, P; Friese, V; Gal, J; Gazdzicki, M; Georgopoulos, G; Gladysz, E; Grebieszkow, K; Hegyi, S; Hohne, C; Kadija, K; Karev, A; Kliemant, M; Kniege, S; Kolesnikov, VI; Kollegger, T; Kornas, E; Korus, R; Kowalski, M; Kraus, I; Kreps, M; van Leeuwen, M; Levai, P; Litov, L; Lungwitz, B; Makariev, M; Malakhov, AI; Markert, C; Mateev, M; Mayes, BW; Melkumov, GL; Meurer, C; Mischke, A; Mitrovski, M; Molnar, J; Mrowczynski, S; Palla, G; Panagiotou, AD; Panayotov, D; Petridis, A; Pikna, M; Pinsky, L; Puhlhofer, F; Reid, JG; Renfordt, R; Richard, A; Roland, C; Roland, G; Rybczynski, M; Rybicki, A; Sandoval, A; Sann, H; Schmitz, N; Seyboth, P; Sikler, F; Sitar, B; Skrzypczak, E; Stefanek, G; Stock, R; Strobele, H; Susa, T; Szentpetery, I; Sziklai, J; Trubnikov, V; Varga, D; Vassiliou, M; Veres, GI; Vesztergombi, G; Vranic, D; Wetzler, A; Wlodarczyk, Z; Yoo, IK; Zaranek, J; Zimanyi, J; ... (2005) System Size and Centrality Dependence of the Balance Function in A + A Collisions at sqrt(sNN) = 17.2 GeV. Physical Review C, 71 (3). 034903/1-034903/1. ISSN 0556-2813

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Results are presented on event-by-event electric charge fluctuations in central Pb+Pb collisions at 20A, 30A, 40A, 80A, and 158A GeV. The observed fluctuations are close to those expected for a gas of pions correlated by global charge conservation only. These fluctuations are considerably larger than those calculated for an ideal gas of deconfined quarks and gluons. The present measurements do not necessarily exclude reduced fluctuations from a quark-gluon plasma because these might be masked by contributions from resonance decays.

Item Type: Article
Uncontrolled Keywords: system size; centrality dependence; balance function; NA49
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Experimental Physics
Depositing User: Tome Antičić
Date Deposited: 11 Mar 2016 13:22
DOI: 10.1103/PhysRevC.71.034903

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