Energy dependence of multiplicity fluctuations in heavy ion collisions

The energy dependence of multiplicity fluctuations was studied for the most central Pb+Pb collisions at 20A, 30A, 40A, 80A and 158A GeV by the NA49 experiment at the CERN SPS. The multiplicity distribution for negatively
The energy dependence of multiplicity fluctuations was studied for the most central Pb+Pb collisions at 20A, 30A, 40A, 80A and 158A GeV by the NA49 experiment at the CERN SPS. The multiplicity distribution for negatively and positively charged hadrons is significantly narrower than Poisson one for all energies. No significant structure in energy dependence of the scaled variance of multiplicity fluctuations is observed. The measured scaled variance is lower than the one predicted by the grand-canonical formulation of the hadron-resonance gas model. The results for scaled variance are in approximate agreement with the string-hadronic model UrQMD.
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Author:Christopher Alt, T. Anticic, B. Baatar, D. Barna, J. Bartke, L. Betev, H. Białkowska, Christoph Blume, B. Boimska, M. Botje, J. Bracinik, R. Bramm, V. Cerny, P. Christakoglou, P. Chung, O. Chvala, J. G. Cramer, P. Csató, Peter Dinkelaker, V. Eckard, D. Flierl, Z. Fodor, P. Foka, V. Friese, J. Gál, Marek Gazdzicki, V. Genchev, G. Georgopoulos, E. Gładysz, K. Grebieszkow, S. Hegyi, C. Höhne, K. Kadija, A. Karev, D. Kikola, M. Kliemant, S. Kniege, V. Kolesnikov, E. Kornas, R. Korus, M. Kowalski, I. Kraus, M. Kreps, A. Laszlo, R Lacey, Marco van Leeuwen, P. Lévai, L. Litov, Benjamin Lungwitz, M. Makariev, A. I. Malakhov, M. Mateev, G. L. Melkumov, A. Mischke, M. Mitrovski, J. Molnár, St. Mrówczynski, V. Nicolic, G. Nicolic, A.D. Panagiotou, D. Panayotov, A. Petridis, W. Peryt, M. Pikna, J. Pluta, D. Prindle, F. Pühlhofer, R. Renfordt, C. Roland, G. Roland, M. Rybczynski, A. Rybicki, Andres Sandoval, N. Schmitz, T. Schuster, P. Seyboth, F. Siklér, B. Sitar, E. Skrzypczaki, M. Slodkowski, G. Stefanek, Reinhard Stock, C. Strabel, Herbert Ströbele, T. Susa, I. Szentpétery, J. Sziklai, M. Szuba, P. Szymanski, V. Trubnikov, D. Varga, M. Vassiliou, G. I. Veres, G. Vesztergombi, D. Vranic, A. Wetzler, Z. Włodarczyk, A. Wojtaszek, I. K. Yoo, József Zimányi
URN:urn:nbn:de:hebis:30-45383
ArXiv Id:http://arxiv.org/abs/nucl-ex/0610046v3
Parent Title (German):Proceedings of Science
Document Type:Article
Language:English
Date of Publication (online):2007/06/14
Year of first Publication:2006
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Contributing Corporation:Correlations and Fluctuations in Relativistic Nuclear Collisions July 7-9 2006 Florence, Italy
Release Date:2007/06/14
Volume:2006
Note:
Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Source:Correlations and Fluctuations in Relativistic Nuclear Collisions, July 7 - 9 2006, Florence, Italy. - arXiv:nucl-ex/0610046v3
HeBIS PPN:188847820
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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