Evidence for the onset of deconfinement and quest for the critical point by NA49 at the CERN SPS

(ALICE Collaboration) Melkumov, G. L.; Anticic, T.; Baatar, B.; Barna, D.; Bartke, J.; Beck, H.; Betev, L.; Bialkowska, H.; Blume, C.; Bogusz, M.; Boimska, B.; Book, J.; Botje, M.; Buncic, P.; Cetner, T.; Christakoglou, P.; Chung, P.; Chvala, O.; Cramer, J. G.; Eckardt, V.; Fodor, Z.; Foka, P.; Friese, V.; Gazdzicki, M.; Grebieszkow, K.; Hoehne, C.; Kadija, K.; Karev, A.; Kolesnikov, V. I.; Kolleger, T.; Kowalski, M.; Kresan, D.; Laszlo, A.; Lacey, R.; van Leeuwen, M.; Mackowiak, M.; Makariev, M.; Malakhov, A. I.; Mateev, M.; Mitrovski, M.; Mrowczynski, St; Nicolic, N.; Palla, G.; Planagiotou, A. D.; Peryt, W.; Pluta, J.; Prindle, D.; Puehlhofer, F.; Renfordt, R.; Roland, C.; Roland, G.; Rybczynski, M.; Rybicki, A.; Sandoval, A.; Schmitz, N.; Schuster, T.; Seyboth, P.; Sikler, F.; Skrzypczak, E.; Slodkowski, M.; Stefanek, G.; Stock, R.; Stroebele, H.; Susa, T.; Szuba, M.; Utvic, M.; Varga, D.; Vassiliou, M.; Veres, G. I.; Vestergombi, G.; Vranic, D.; Wlodarczyk, Z.; Wojtaszek-Szwarc, A.; 5 ] (2012) Evidence for the onset of deconfinement and quest for the critical point by NA49 at the CERN SPS. Physics of Atomic Nuclei, 75 (5). pp. 556-566. ISSN 1063-7788

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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.

Item Type:	Article
Uncontrolled Keywords:	heavy-ion collisions; nucleus-nucleus collisions; hadron-production; fluctuations; equilibration; strangeness; stage
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Division of Experimental Physics
Projects:	Project title Project leader Project code Project type Experimental physics at LHC energies (Eksperimentalna fizika na LHC energijama)- Krešo Kadija 098-0982887-2878 MZOS
Depositing User:	Tome Antičić
Date Deposited:	14 Apr 2016 14:26
URI:	http://fulir.irb.hr/id/eprint/2728
DOI:	10.1134/S1063778812050158

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