CERN Accelerating science

Article
Title Evidence for the onset of deconfinement and quest for the critical point by NA49 at the CERN SPS
Author(s)

Melkumov, G L (Dubna, JINR) ; Anticic, T (Boskovic Inst., Zagreb) ; Baatar, B (Dubna, JINR) ; Barna, D (Budapest, RMKI) ; Bartke, J (Cracow, INP) ; Beck, H (Frankfurt U.) ; Betev, L (CERN) ; Bialkowska, H (Warsaw, Inst. Nucl. Studies) ; Blume, C (Frankfurt U.) ; Bogusz, M (Warsaw U. of Tech.) ; Boimska, B (Warsaw, Inst. Nucl. Studies) ; Book, J (Frankfurt U.) ; Botje, M (NIKHEF, Amsterdam) ; Buncic, P (CERN) ; Cetner, T (Warsaw U. of Tech.) ; Christakoglou, P (NIKHEF, Amsterdam) ; Chung, P (SUNY, Stony Brook, Chem. Dept.) ; Chvala, O (Charles U.) ; Cramer, J G (Washington U., Seattle) ; Eckardt, V (Munich, Max Planck Inst.) ; Fodor, Z (Budapest, RMKI) ; Foka, P (Darmstadt, GSI) ; Friese, V (Darmstadt, GSI) ; Gazdzicki, M (Jan Kochanowski U. ; Frankfurt U.) ; Grebieszkow, K (Warsaw U. of Tech.) ; Hohne, C (Darmstadt, GSI) ; Kadija, K (Boskovic Inst., Zagreb) ; Karev, A (CERN) ; Kolesnikov, V.I (Dubna, JINR) ; Kolleger, T (Frankfurt U.) ; Kowalski, M (Cracow, INP) ; Kresan, D (Darmstadt, GSI) ; Laszlo, A (Budapest, RMKI) ; Lacey, R (SUNY, Stony Brook, Chem. Dept.) ; van Leeuwen, M (NIKHEF, Amsterdam) ; Mackowiak, M (Warsaw U. of Tech.) ; Makariev, M (Sofiya, Inst. Nucl. Res.) ; Malakhov, A I (Dubna, JINR) ; Mateev, M (Sofiya U.) ; Mitrovski, M (Frankfurt U.) ; Mrowczynski, St (Jan Kochanowski U.) ; Nicolic, N (Boskovic Inst., Zagreb) ; Palla, G (Budapest, RMKI) ; Panagiotou, A D (Athens U.) ; Peryt, W (Warsaw U. of Tech.) ; Pluta, J (Warsaw U. of Tech.) ; Prindle, D (Washington U., Seattle) ; Puhlhofer, F (Philipps U. Marburg) ; Renfordt, R (Frankfurt U.) ; Roland, C (MIT) ; Roland, G (MIT) ; Rybczynski, M (Jan Kochanowski U.) ; Rybicki, A (Cracow, INP) ; Sandoval, A (Darmstadt, GSI) ; Schmitz, N (Munich, Max Planck Inst.) ; Schuster, T (Frankfurt U.) ; Seyboth, P (Munich, Max Planck Inst.) ; Sikler, F (Budapest, RMKI) ; Skrzypczak, E (Warsaw U.) ; Slodkowski, M (Warsaw U. of Tech.) ; Stefanek, G (Jan Kochanowski U.) ; Stock, R (Frankfurt U.) ; Strobele, H (Frankfurt U.) ; Susa, T (Boskovic Inst., Zagreb) ; Szuba, M (Warsaw U. of Tech.) ; Utvic, M (Frankfurt U.) ; Varga, D (Eotvos U.) ; Vassiliou, M (Athens U.) ; Veres, G I (Budapest, RMKI) ; Vestergombi, G (Budapest, RMKI) ; Vranic, D (Darmstadt, GSI) ; Wlodarczyk, Z (Jan Kochanowski U.) ; Wojtaszek-Szwarc, A (Jan Kochanowski U.)

Corporate Author(s) PH
Publication 2012
In: Phys. Atom. Nucl. 75 (2012) pp.556-566
In: 6th International Workshop on Critical Point and Onset of Deconfinement, Dubna, Russia, 23 - 29 Aug 2010, pp.556-566
DOI 10.1134/S1063778812050158
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; NA49
Abstract The NA49 results on hadron production obtained in PbPb collisions at SPS energies from 20 to 158 A GeV are shown and discussed as evidence for the onset of deconfinement. The primary measures are the pion yield, the kaon-to-pion ratio and the slope parameter of transverse mass distributions. The possible indication of the QCD critical point signatures was investigated in the event-by-event fluctuations of various observables such as the mean transverse momentum, particle multiplicity and azimuthal angle distributions as well as in the particle ratio fluctuations. The energy dependence of these observables was measured in central PbPb collisions in the full SPS energy range while for analysis of the system size dependence data from pp, CC, SiSi, and PbPb collisions at the top SPS energy were used.

Corresponding record in: Inspire


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