CERN Accelerating science

Article
Report number	arXiv:1506.08141
Title	Search for critical behavior of strongly interacting matter at the CERN Super Proton Synchrotron
Related title	Search for critical behavior of strongly interacting matter at the CERN Super Proton Synchrotron
Author(s)	Gazdzicki, Marek (Frankfurt U. ; Jan Kochanowski U.) ; Seyboth, Peter (Munich, Max Planck Inst.)
Publication	2016
Imprint	26 Jun 2015
Number of pages	44
Note	Comments: 44 pages 44 pages, 27 figures, minor text corrections
In:	Acta Phys. Pol. B 47 (2016) 1201
DOI	10.5506/APhysPolB.47.1201
Subject category	nucl-ex ; Nuclear Physics - Experiment
Accelerator/Facility, Experiment	CERN SPS
Abstract	History, status and plans of the search for critical behavior of strongly interacting matter created in nucleus-nucleus collisions at the CERN Super Proton Synchrotron is reviewed. In particular, it is expected that the search should answer the question whether the critical point of strongly interacting matter exists and, if it does, where it is located. First, the search strategies are presented and a short introduction is given to expected fluctuation signals and to the quantities used by experiments to detect th The most important background effects are also discussed. Second, relevant experimental results are summarized and discussed. It is intriguing that both the fluctuations of quantities integrated over the full experimental acceptance (event multiplicity and transverse momentum) as well as the bin size dependence of the second factorial moment of pion and proton multiplicities in medium-sized Si+Si collisions at 158A GeV/c suggest critical behaviour of the created matter. These results provide strong motivation for the ongoing systematic scan of the phase diagram by the NA61/SHINE experiment at the SPS and the continuing search at the Brookhaven Relativistic Hadron Collider.
Copyright/License	arXiv nonexclusive-distrib. 1.0

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