Observable consequences of tilted initial state

20 May 2014, 16:30
spectrum (darmstadtium)



Board: H-17
Poster Collective Dynamics Poster session


Prof. Volodymyr Magas (University of Barcelona)


The hydrodynamic simulations of the ultra-relativistic heavy ion collisions are very successful in describing these reactions, as it is confirmed by the latest RHIC and LHC data. Hydrodynamic simulation does not only mean a certain algorithm of solving the equations of relativistic hydrodynamics; it is also based on a specific initial state, specific EoS, and specific freeze out realization. In our opinion, between these elements the least controlled is the initial state. Unfortunately at the moment there is no unambiguous model describing the formation of locally thermalized initial states of energetic heavy ion collisions, and thus, all initial states in use are either completely phenomenological or contain some phenomenological elements. We will argue that, from the very general principles like linear and angular momentum conservation, we can expect to form tilted and rotating initial state. The latter is particularly important for ultra-high LHC energies. The key question we address is what are the observable consequences of such a tilted and rotating initial state? For detailed calculations we use an initial states generated by the Effective String Rope model [1] for RHIC and LHC heavy ion reactions; which we also compare with results of the other models intending to calculate such initial states. [1] Magas, Csernai, Strottman, Phys. Rev. C 64 (2001) 014901; Nucl. Phys. A712 (2002) 167.

Primary author

Prof. Volodymyr Magas (University of Barcelona)


Prof. Laszlo Pal Csernai (University of Bergen, Norway)

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