Gießen 2024 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 55: Heavy-Ion Collisions and QCD Phases XIII
HK 55.1: Vortrag
Mittwoch, 13. März 2024, 17:30–17:45, HBR 62: EG 03
Feasibility Studies for Di-Electron Spectroscopy with CBM at FAIR — •Cornelius Feier-Riesen for the CBM collaboration — GSI, Darmstadt, Germany — Justus-Liebig-Universität, Gießen, Germany
The Compressed Baryonic Matter experiment (CBM) at FAIR is designed to explore the QCD phase diagram at high net baryon densities and moderate temperatures by means of heavy ion collisions with energies from 2-11 AGeV beam energy (Au+Au collisions) and interaction rates up to 10 MHz, provided by the SIS100 accelerator.
Leptons as penetrating probes not taking part in the strong interaction leave the fireball without being modified, thus carrying information from the dense baryonic matter. However, di-leptons are rare probes, therefore calling for high efficiency and high purity identification capabilities. In CBM, electron identification will be performed by a Ring Imaging Cherenkov Detector (RICH), a Transition Radiation Detector (TRD) and a Time-of-Flight detector (ToF).
In this contribution, feasibility studies of di-electron spectroscopy from low mass vector meson decays will be presented. Special emphasis is put on the application of Fast Simulations to achieve higher statistics for the rare di-electrons in order to evaluate the feasibility of e.g. temperature measurements in the intermediate mass region beyond 1 GeV/c2.
Keywords: QCD Phase Diagram; Di-Electron; Fast Simulations; CBM