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HK: Fachverband Physik der Hadronen und Kerne

HK 35: Heavy-Ion Collisions and QCD Phases VIII

HK 35.3: Vortrag

Mittwoch, 1. April 2020, 17:15–17:30, J-HS G

Application of the 3-Fluid Hydrodynamic Event Generator THESEUS to CBM — •Elena Volkova for the CBM collaboration — Tuebingen University, Germany

The Compressed Baryonic Matter experiment (CBM) at FAIR will measure nucleus-nucleus collisions at beam energies up to 11 AGeV for Au. The key objective of CBM is to investigate the QCD phase diagram in the region of the highest net-baryon-densities. The experiment is well suited to explore the Equation-of-State of nuclear matter at densities as they might occur in the interior of neutron stars or during neutron star mergers.

The new generator THESEUS for heavy ion collisions describes the whole evolution of the system which begins with the fireball creation, its expansion and ends with free-streaming particles, which can be accounted for in event based simulations. The generator based on hydrodynamics and thus requires, and equation of state(EoS). It is possible to choose between 3 different scenario: 1st order phase transition, crossover and pure hadron gas. A status of various for the analysis for various observables(rapidity distributions. transverse mass spectra) employing different EoS with and without CBM detector will be presented. We will discuss an effect on observables and the ways to possibly distinguish between different EoS.