Physics performance studies with the CBM-TRD

The CBM Experiment at SIS100 will provide unique capabilities to study strongly interacting matter at extreme densities. It might allow to locate the chiral and deconfinement phase transition in this energy regime. The electron-setup of the CBM experiment is composed of a ring-imaging Cherenkov detector (RICH), followed by four layers of transition radiation detectors (TRD) and a time-of-flight detector (TOF). They will provide the necessary particle identification to study low-mass vector mesons and thermal radiation in the intermediate mass range (1-3 GeV/c²) mediated via dielectron pairs at central rapidity (vertical stroke y vertical stroke <1.5). In addition, the TRD contributes to the analysis of J/ψ decaying into two electrons by suppression of pions, which will allow to study J/ψ production near threshold. The unique capabilities to identify fragments via the dE/dx-measurement provided by the TRD allows the investigation of hyper-nuclei such as the ⁶_ΛΛHe. After a brief description of the apparatus, the performance of the TRD in central Au+Au collisions at √(s_NN)=4.11 GeV and p+Au collisions at √(s_NN)=7.62 GeV will be shown.