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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:42 |
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Conference: Bucharest University Faculty of Physics 2018 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
Net charge fluctuations in heavy ion collisions at energies between 2-10 GeVA
Authors:
Valerica BABAN (1), Alexandru JIPA (2), Danut ARGINTARU (1)
Affiliation:
(1) Constanta Maritime University, (2) Bucharest University Faculty of Physics
E-mail
babanvalerica@yahoo.com
Keywords:
heavy ion collisions, net charge fluctuations
Abstract:
The study of fluctuations in heavy ion collisions can provide evidence for the production of a quark gluon plasma (QGP), net charge event-by-event fluctuations is one of the observables proposed to indicate the formation of QGP. The most efficient is to study the event-by-event fluctuations, where a given observable is measured on an event-by-event basis and the fluctuations are studied over an ensemble of events. Fluctuations, in principle, may be used to measure the susceptibilities of the system. These susceptibilities also determine the response of the system to external forces. Many authors argued that entropy conserving hadronization of a plasma of quarks and gluons should produce a final state characterized by a dramatic reduction of the net charge fluctuations relative to that of a hadron gas. Several experiments at different energies range (SPS, RHIC) have been studied the fluctuations in relativistic heavy ion collisions but it is expected that the creation of highest possible baryon densities occur at more moderate beam energies, like FAIR energies. In this work, we analyze the problem of net charge particles fluctuations at energies between 2-10 GeV in a fix target experiment, like CBM experiment, using some simulations codes (Urqmd, Hijing).
References:
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[2] S. Jeon, V. Koch , Charged Particle Ratio Fluctuation as a Signal for QGP, 2000.
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[4] S. A. Bass, M. Belkacem, M. Bleicher, et al...Microscopic Models for Ultrarelativistic Heavy Ion Collisions ,Prog. Part. Nucl. Phys. 41 (1998) 225-370 , 1999.
[5] V.P . Konchakovski,Haussler,M.I. Gorenstein, E.L. Bratkovskaya, M. Bleicher, H. Stocker, Particle Number Fluctuations in High Energy Nucleus-Nucleus Collisions from Microscopic Transport Approaches,2006
[6] C. Pruneau, Data Analysis Techniques for Physical Scientists, Cambridge University Press, 2017.
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