Results on Correlations and Fluctuations from NA49

(NA49 Collaboration) Blume, C; Afanasiev, SV; Anticic, T; Baatar, B; Barna, D; Bartke, J; Barton, RA; Behler, M; Betev, L; Bialkowska, H; Billmeier, A; Blume, C; Blyth, CO; Boimska, B; Botje, M; Bracinik, J; Bramm, R; Brun, R; Buncic, P; Cerny, V; Chvala, O; Cramer, JG; Csato, P; Dinkelaker, P; Eckardt, V; Filip, P; Fischer, HG; Fodor, Z; Foka, P; Freund, P; Friese, V; Gal, J; Gazdzicki, M; Georgopoulos, G; Gladysz, E; Hegyi, S; Hohne, C; Igo, C; Jones, PG; Kadija, K; Karev, A; Kolesnikov, VI; Kollegger, T; Kowalski, M; Kraus, I; Kreps, M; van Leeuwen, M; Lednicky, R; Levai, P; Malakhov, AI; Margetis, S; Markert, C; Mayes, BW; Melkumov, GL; Meurer, C; Mischke, A; Mitrovski, M; Molnar, J; Nelson, JM; Palla, G; Panagiotou, AD; Perl, K; Petridis, A; Pikna, M; Pinsky, L; Puhlhofer, F; Reid, JG; Renfordt, R; Retyk, W; Roland, C; Roland, G; Rybicki, A; Sammer, T; Sandoval, A; Sann, H; Schmitz, N; Seyboth, P; Sikler, F; Sitar, B; Skrzypczak, E; Smolik, J; Squier, GTA; Stock, R; Strobele, H; Susa, T; Szentpetery, I; Sziklai, J; Trainor, TA; Varga, D; Vassiliou, M; Veres, GI; Vesztergombi, G; Vranic, D; Wenig, S; Wetzler, A; Whitten, C; Yoo, IK; Zaranek, J; Zimanyi, J; (2003) Results on Correlations and Fluctuations from NA49. Nuclear Physics A, 715 . pp. 55-64. ISSN 0375-9474

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Abstract

The large acceptance and high momentum resolution as well as the significant particle identification capabilities of the NA49 experiment at the CERN SPS allow for a broad study of fluctuations and correlations in hadronic interactions. In the first part recent results on event-by-event charge and p_t fluctuations are presented. Charge fluctuations in central Pb+Pb reactions are investigated at three different beam energies (40, 80, and 158 AGeV), while for the p_t fluctuations the focus is put on the system size dependence at 158 AGeV. In the second part recent results on Bose Einstein correlations of h-h- pairs in minimum bias Pb+Pb reactions at 40 and 158 AGeV, as well as of K+K+ and K-K- pairs in central Pb+Pb collisions at 158 AGeV are shown. Additionally, other types of two particle correlations, namely pi p, Lambda p, and Lambda Lambda correlations, have been measured by the NA49 experiment. Finally, results on the energy and system size dependence of deuteron coalescence are discussed.

Item Type:

Article

Uncontrolled Keywords:

charge fluctuation; p_T fluctuation; Pb+Pb collision

Subjects:

NATURAL SCIENCES > Physics

Divisions:

Division of Experimental Physics

Projects: