Higher moments of multiplicity distributions in nuclear collisions at relativistic energies

20 May 2014, 16:30
2h
spectrum (darmstadtium)

spectrum

darmstadtium

Board: I-32
Poster Correlations and Fluctuations Poster session

Speaker

Dr Catalin Ristea (Faculty of Physics, University of Bucharest, Institute of Space Science, Magurele)

Description

Heavy ion reactions at ultrarelativistic energies provide information on strongly interacting matter under extreme conditions. In these collisions a large number of particles of different types is produced. Current understanding of such collisions suggest that the production of a QGP phase in relativistic heavy ion collisions could produce significant event-by-event correlations and fluctuations in transverse momentum, multiplicity, etc. Therefore it is important to analyze fluctuations of multiplicities (net-protons, net-strangeness, total protons) for different energies and centralities and search for anomalous behaviour due to a phase transition. The multiplicity distributions of different types of particles produced in simulated Au+Au collisions using different theoretical models at energies ranging from 2 – 200 AGeV were analyzed and the moments of the distributions were calculated. Model results can be used to provide a baseline for the phase transition and QCD critical point search. The centrality and beam energy dependence of the moments of simulated multiplicity distributions will be shown and discussed.
On behalf of collaboration: None

Primary author

Dr Catalin Ristea (Faculty of Physics, University of Bucharest, Institute of Space Science, Magurele)

Co-authors

Dr Alexandru Jipa (Faculty of Physics, University of Bucharest) Dr Calin Besliu (Faculty of Physics, University of Bucharest) Dr Oana Ristea (Faculty of Physics, University of Bucharest)

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