CERN Accelerating science

Article
Report number nucl-ex/0412018 ; IKF-2004-02 ; IKF-2004-02
Title Indications for the onset of deconfinement in nucleus nucleus collisions
Author(s)

Flierl, D. (Frankfurt U.) ; Alt, C. (Frankfurt U.) ; Anticic, T. (Boskovic Inst., Zagreb) ; Baatar, B. (Dubna, JINR) ; Barna, D. (Budapest, RMKI) ; Bartke, J. (Cracow, INP) ; Betev, L. (Frankfurt U. ; CERN) ; Białkowska, H. (Warsaw, Inst. Nucl. Studies) ; Billmeier, A. (Frankfurt U.) ; Blume, C. (Frankfurt U.) ; Boimska, B. (Warsaw, Inst. Nucl. Studies) ; Botje, M. (Nikhef, Amsterdam) ; Bracinik, J. (Comenius U.) ; Bramm, R. (Frankfurt U.) ; Brun, R. (CERN) ; Buncic, P. (Frankfurt U. ; CERN) ; Cerny, V. (Comenius U.) ; Christakoglou, P. (Athens U.) ; Chvala, O. (Charles U.) ; Cramer, J G. (Washington U., Seattle) ; Csató, P. (Budapest, RMKI) ; Darmenov, N. (Sofia U. (main)) ; Dimitrov, A. (Sofia U. (main)) ; Dinkelaker, P. (Frankfurt U.) ; Eckardt, V. (Munich, Max Planck Inst.) ; Fodor, Z. (Budapest, RMKI) ; Foka, P. (Darmstadt, GSI) ; Freund, P. (Munich, Max Planck Inst.) ; Friese, V. (Darmstadt, GSI) ; Gál, J. (Budapest, RMKI) ; Gazdzicki, M. (Frankfurt U. ; Jan Kochanowski U.) ; Georgopoulos, G. (Athens U.) ; Gładysz, E. (Cracow, INP) ; Grebieszkow, K. (Warsaw U.) ; Hegyi, S. (Budapest, RMKI) ; Höhne, C. (Philipps U. Marburg) ; Kadija, K. (Boskovic Inst., Zagreb) ; Karev, A. (Munich, Max Planck Inst.) ; Kliemant, M. (Frankfurt U.) ; Kniege, S. (Frankfurt U.) ; Kolesnikov, V I. (Dubna, JINR) ; Kollegger, T. (Frankfurt U.) ; Kornas, E. (Cracow, INP) ; Korus, R. (Jan Kochanowski U.) ; Kowalski, M. (Cracow, INP) ; Kraus, I. (Darmstadt, GSI) ; Kreps, M. (Comenius U.) ; van Leeuwen, M. (Nikhef, Amsterdam) ; Lévai, P. (Budapest, RMKI) ; Litov, L. (Sofia U. (main)) ; Lungwitz, B. (Frankfurt U.) ; Makariev, M. (Sofia U. (main)) ; Malakhov, A.I. (Dubna, JINR) ; Markert, C. (Darmstadt, GSI) ; Mateev, M. (Sofia U. (main)) ; Mayes, B.W. (Houston U.) ; Melkumov, G.L. (Dubna, JINR) ; Meurer, C. (Frankfurt U.) ; Mischke, A. (Darmstadt, GSI) ; Mitrovski, M. (Frankfurt U.) ; Molnár, J. (Budapest, RMKI) ; Mrówczynski, S. (Jan Kochanowski U.) ; Pálla, G. (Budapest, RMKI) ; Panagiotou, A.D. (Athens U.) ; Panayotov, D. (Sofia U. (main)) ; Petridis, A. (Athens U.) ; Pikna, M. (Comenius U.) ; Pinsky, L. (Houston U.) ; Pühlhofer, F. (Philipps U. Marburg) ; Reid, J.G. (Washington U., Seattle) ; Renfordt, R. (Frankfurt U.) ; Richard, A. (Frankfurt U.) ; Roland, C. (MIT) ; Roland, G. (MIT) ; Rybczynski, M. (Jan Kochanowski U.) ; Rybicki, A. (Cracow, INP ; CERN) ; Sandoval, A. (Darmstadt, GSI) ; Sann, H. (Darmstadt, GSI) ; Schmitz, N. (Munich, Max Planck Inst.) ; Seyboth, P. (Munich, Max Planck Inst.) ; Siklér, F. (Budapest, RMKI) ; Sitar, B. (Comenius U.) ; Skrzypczak, E. (Warsaw U.) ; Stefanek, G. (Jan Kochanowski U.) ; Stock, R. (Frankfurt U.) ; Ströbele, H. (Frankfurt U.) ; Susa, T. (Boskovic Inst., Zagreb) ; Szentpétery, I. (Budapest, RMKI) ; Sziklai, J. (Budapest, RMKI) ; Trainor, T.A. (Washington U., Seattle) ; Trubnikov, V. (Warsaw U.) ; Varga, D. (Budapest, RMKI) ; Vassiliou, M. (Athens U.) ; Veres, G.I. (Budapest, RMKI ; MIT) ; Vesztergombi, G. (Budapest, RMKI) ; Vranic, D. (Darmstadt, GSI) ; Wetzler, A. (Frankfurt U.) ; Włodarczyk, Z. (Jan Kochanowski U.) ; Yoo, I.K. (Pusan Natl. U.) ; Zaranek, J. (Frankfurt U.) ; Zimanyi, J. (Budapest, RMKI)

Publication 2005-04-22
Imprint 9 Dec 2004
Number of pages 4
Note 4 pages, 3 figures, Proceedings of the Quark Confinement VI conference
In: AIP Conf. Proc. 756 (2005) 433-435
In: 6th Conference on Quark Confinement and the Hadron Spectrum, Villasimius, Italy, 21 - 25 Sep 2004, pp.433-435
DOI 10.1063/1.1921016
Subject category Nuclear Physics
Accelerator/Facility, Experiment CERN SPS ; NA49
Abstract The hadronic final state of central Pb+Pb collisions at 20, 30, 40, 80, and 158 AGeV has been measured by the CERN NA49 collaboration. The mean transverse mass of pions and kaons at midrapidity stays nearly constant in this energy range, whereas at lower energies, at the AGS, a steep increase with beam energy was measured. Compared to p+p collisions as well as to model calculations, anomalies in the energy dependence of pion and kaon production at lower SPS energies are observed. These findings can be explained, assuming that the energy density reached in central A+A collisions at lower SPS energies is sufficient to force the hot and dense nuclear matter into a deconfined phase.



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 Записът е създаден на 2004-12-11, последна промяна на 2024-03-07


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