Design Of The Micro Vertex Detector Of The Cbm Experiment

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Design of the Micro Vertex Detector of the CBM Experiment

The CBM experiment (Compressed Baryonic Matter), one of the main experiments of the future FAIR accelerator facility (Darmstadt, Germany), aims in studying the phase diagram of nuclear matter in the region of high baryonic densities and moderate temperatures. Among the core physics goals is the study of the production and propagation of open charm particles, like D-mesons (particles containing one charm quark and one light quark) in heavy ion collisions. The measurements of these charmed mesons require the use of an excellent precision vertex detector. The present thesis is a contribution to the design and development of this detection device called MVD (Micro Vertex Detector). It is focused on three different parts. The first one concerns the experimental characterisation of the response of MAPS (Monolithic Active Pixel Sensors) sensors, composing the MVD detector stations, to the passage of charged particles. The second deals with the development of a realistic detector response model for the MVD detector. The last part focuses on a detailed feasibility study of open charm particle measurements in heavy ion collisions. The results demonstrate the feasibility of open charm particle measurements and allow assessing the expected performances and the limitations of the experiment.
Design of the Micro Vertex Detector of the CBM Experiment

The CBM experiment (Compressed Baryonic Matter), one of the main experiments of the future FAIR accelerator facility (Darmstadt, Germany), aims in studying the phase diagram of nuclear matter in the region of high baryonic densities and moderate temperatures. Among the core physics goals is the study of the production and propagation of open charm particles, like D-mesons (particles containing one charm quark and one light quark) in heavy ion collisions. The measurements of these charmed mesons require the use of an excellent precision vertex detector. The present thesis is a contribution to the design and development of this detection device called MVD (Micro Vertex Detector). It is focused on three different parts. The first one concerns the experimental characterisation of the response of MAPS (Monolithic Active Pixel Sensors) sensors, composing the MVD detector stations, to the passage of charged particles. The second deals with the development of a realistic detector response model for the MVD detector. The last part focuses on a detailed feasibility study of open charm particle measurements in heavy ion collisions. The results demonstrate the feasibility of open charm particle measurements and allow assessing the expected performances and the limitations of the experiment.