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Mainz 2022 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 65: Heavy-Ion Collisions and QCD Phases XIII

HK 65.6: Talk

Thursday, March 31, 2022, 17:15–17:30, HK-H1

Application of the Three-fluid Hydrodynamics-based Generator THESEUS to CBM. — •Elena Volkova, Hans Rudolf Schmidt, and Viktor Klochkov for the CBM collaboration — Eberhard Karls Universität Tübingen

The Compressed Baryonic Matter experiment (CBM) aims to study the area of the QCD phase diagram at high net baryon densities and moderate temperatures. It is predicted by Three-fluid Hydrodynamics-based Event Simulator (THESEUS) that one of the signatures of phase transition is a change in shape of the mid-rapidity curvature and yield.

In this contribution we will present CBM performance for proton rapidity- transverse mass spectra. The results are obtained for Au+Au collisions at √sNN = 2.7 - 4.9 GeV/c produced by THESEUS model. CBM detector response is simulated with the GEANT3 engine and reconstruction is done using the CbmRoot framework. Protons are identified with Time-of-Flight technique using 2 different approaches. Obtained spectra are corrected for detector biases using the UrQMD event generator. Results are compared with simulated values and sources of systematic biases are discussed.

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