Critical fluctuations of the proton density in A+A collisions at $158A$ GeV

Anticic, T.; Grebieszkow, K.; Leeuwen, M.; Peryt, W.; Skrzypczak, E.; Siklér, F.; Eckardt, V.; Beck, H.; Diakonos, F.K.; Laszlo, A.; Baatar, B.; Panagiotou, A.D.; Fodor, Z.; Malakhov, A.I.; Pluta, J.; Cramer, J.; Höhne, C.; Białkowska, H.; Renfordt, R.; Kowalski, M.; Mrówczyński, St.; Szuba, M.; Prindle, D.; Pühlhofer, F.; Christakoglou, P.; Schuster, T.; Stefanek, G.; Bartke, J.; Wojtaszek-Szwarć, A.; Cetner, T.; Friese, V.; Susa, T.; Vassiliou, M.; Karev, A.; Vranić, D.; Boimska, B.; Chvala, O.; Roland, G.; Gaździcki, M.; Włodarczyk, Z.; Rybczyński, M.; Kresan, D.; Ströbele, H.; Davis, N.; Kadija, K.; Stock, R.; Slodkowski, M.; Antoniou, N.G.; Bunčić, P.; Foka, P.; Makariev, M.; Varga, D.; Mitrovski, M.; Rybicki, A.; Veres, G.I.; Pálla, G.; Seyboth, P.; Schmitz, N.; Betev, L.; Bogusz, M.; Blume, C.; Rustamov, A.; Vesztergombi, G.; Melkumov, G.L.; Botje, M.; Kolesnikov, V.I.; Book, J.; Maćkowiak-Pawłowska, M.; Sandoval, A.; Mateev, M.; Roland, C.

doi:10.1140/epjc/s10052-015-3738-5

Article
Report number	arXiv:1208.5292
Title	Critical fluctuations of the proton density in A+A collisions at $158A$ GeV
Author(s)	Anticic, T. (Boskovic Inst., Zagreb) ; Baatar, B. (Dubna, JINR) ; Bartke, J. (Cracow, INP) ; Beck, H. (Frankfurt U.) ; Betev, L. (CERN) ; Białkowska, 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) ; Bunčić, P. (CERN) ; Cetner, T. (Warsaw U. of Tech.) ; Christakoglou, P. (NIKHEF, Amsterdam) ; Chvala, O. (Charles U.) ; Cramer, J. (Washington U., Seattle) ; Eckardt, V. (Munich, Max Planck Inst.) ; Fodor, Z. (Wigner RCP, Budapest) ; Foka, P. (Darmstadt, GSI) ; Friese, V. (Darmstadt, GSI) ; Gaździcki, M. (Frankfurt U. ; Jan Kochanowski U.) ; Grebieszkow, K. (Warsaw U. of Tech.) ; Höhne, C. (Darmstadt, GSI) ; Kadija, K. (Boskovic Inst., Zagreb) ; Karev, A. (CERN) ; Kolesnikov, V.I. (Dubna, JINR) ; Kowalski, M. (Cracow, INP) ; Kresan, D. (Darmstadt, GSI) ; Laszlo, A. (Wigner RCP, Budapest) ; Leeuwen, M. (NIKHEF, Amsterdam) ; Maćkowiak-Pawłowska, M. (Warsaw U. of Tech.) ; Makariev, M. (Sofiya, Inst. Nucl. Res.) ; Malakhov, A.I. (Dubna, JINR) ; Mateev, M. (Sofiya U.) ; Melkumov, G.L. (Dubna, JINR) ; Mitrovski, M. (Frankfurt U.) ; Mrówczyński, St. (Jan Kochanowski U.) ; Pálla, G. (Wigner RCP, Budapest) ; Panagiotou, A.D. (Athens U.) ; Peryt, W. (Warsaw U. of Tech.) ; Pluta, J. (Warsaw U. of Tech.) ; Prindle, D. (Washington U., Seattle) ; Pühlhofer, F. (Philipps U. Marburg) ; Renfordt, R. (Frankfurt U.) ; Roland, C. (MIT) ; Roland, G. (MIT) ; Rustamov, A. (Frankfurt U.) ; Rybczyński, 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.) ; Siklér, F. (Wigner RCP, Budapest) ; Skrzypczak, E. (Warsaw U.) ; Slodkowski, M. (Warsaw U. of Tech.) ; Stefanek, G. (Jan Kochanowski U.) ; Stock, R. (Frankfurt U.) ; Ströbele, H. (Frankfurt U.) ; Susa, T. (Boskovic Inst., Zagreb) ; Szuba, M. (Warsaw U. of Tech.) ; Varga, D. (Eotvos U.) ; Vassiliou, M. (Athens U.) ; Veres, G.I. (Wigner RCP, Budapest) ; Vesztergombi, G. (Wigner RCP, Budapest) ; Vranić, D. (Darmstadt, GSI) ; Włodarczyk, Z. (Jan Kochanowski U.) ; Wojtaszek-Szwarć, A. (Jan Kochanowski U.) ; Antoniou, N.G. (Athens U.) ; Davis, N. (Athens U.) ; Diakonos, F.K. (Athens U.)
Publication	2015-12-12
Imprint	28 Aug 2012
Number of pages	5
Note	Comments: 5 pages, 5 figures 16 pages, 7 figures
In:	Eur. Phys. J. C 75 (2015) 587
DOI	10.1140/epjc/s10052-015-3738-5
Subject category	Nuclear Physics - Experiment
Accelerator/Facility, Experiment	CERN SPS ; NA49
Abstract	Studies of QCD suggest the existence of a critical point in the phase diagram of strongly interacting matter. Close to this point, according to recent theoretical investigations, the net-proton density carries the critical fluctuations of the chiral order parameter. Using intermittency analysis in the transverse momentum phase space of protons produced around midrapidity in the 12.5% most central C+C, Si+Si and Pb+Pb collisions at the maximum SPS energy of 158$A$ GeV we find evidence of power-law fluctuations for the Si+Si and Pb+Pb data. The fitted power-law exponent approaches the value expected for critical fluctuations. This suggests that the freeze-out states of these two systems are located in the phase diagram in the neighbourhood of the chiral critical point.
Copyright/License	arXiv nonexclusive-distrib. 1.0 publication: © 2015-2024 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³

$(Color online) SSFMs of the proton density in transverse momentum space at midrapidity ($-0.75 < y_{CM} <0.75$) for the 12.5\% most central collisions of (a) ``C$ $(Color online) Second factorial moments of the proton density in transverse momentum space at midrapidity ($-0.75 < y_{CM} <0.75$) for the 12.5\% most central collisions of (a) ``C$ $(Color online) The correlator $\Delta F_2(M)$ in log-linear scale, corresponding to the moments of Fig.~1, for the 12.5\% most central collisions of (a) ``C$ Show more plots

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ჩანაწერი შექმნილია 2012-08-28, ბოლოს შესწორებულია 2024-03-07

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