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Propagation of Fluctuations in Au+Au Collisions at FAIR energy by Ahmad, S.; Farooq, M.; Bashir, S.; jahan, H.; Ahmad, N.; Chattopadhyay, S. is a scholarly article available to read on EtoBox.

What is Propagation of Fluctuations in Au+Au Collisions at FAIR energy about?

Event by event fluctuations of particle multiplicities and their ratios are considered to be sensitive probes to the exotic phenomena in high energy heavy ion collisions like phase transtion or the occurence of critical point. These phenomena might take place at different time after the collision based on fulfilling the required conditions at a particular time. Fluctuations are therefore expected to show non-monotonic behaviour at the of time of occurence of these phenomena. Experimentally, fluctuations are measured at freezeout. In this work, using the hybrid version of the UrQMD event generator, we have investigated the propagation of fluctuations of particle multiplicities, their ratios and the ratio of total positive and negative charges in AuAu collisions at E_{lab} < 90 AGeV. Two commonly used experimental measures i.e., {\sigma^2}/mean and {\nu_{dyn}} have been used in the analysis in a given acceptance. The hybrid model, i.e., UrQMD with hydrodynamic evolution has been used to study the effect of hydrodynamic evolution on these conventional fluctuation measures. It is observed that the fluctuations as measured by {\sigma^2}/mean and {\nu_{dyn}} gets reduced considerably at

Author

Ahmad, S.; Farooq, M.; Bashir, S.; jahan, H.; Ahmad, N.; Chattopadhyay, S.

Published

2014

Language

EN