Speaker
Description
Since the properties of the initial state of heavy-ion collisions are not directly accessible in experiments, there currently exists a variety of different models employed in fluid dynamic simulations of heavy-ion collisions.
In this talk I will give a brief overview over different initial-state models and introduce a new method to characterize initial density profiles by decomposing them in terms of an average state and an orthonormal basis of modes that represent the event-by-event fluctuations of the initial state.
The basis is determined such that the probability distributions of the amplitudes of different modes are uncorrelated.
Based on this decomposition, the different types and probabilities of event-by-event fluctuations in Glauber and Saturation models can be quantified and it is possible to investigate how the modes affect the characteristics of the initial state.
Simulations of the dynamical evolution in K{\o}MP{\o}ST and MUSIC show the impact of the various modes on final-state observables and their correlations.
| speaker affiliation | Bielefeld University |
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