I describe the development of a read-out system of the pixel detector at Belle II and the search for a rare D
+ decay at Belle. The rare D
+ decay is sensitive to physics beyond the standard model. I measured branching fraction with weak statistical significance, and therefore report an upper exclusion limit on the branching fraction. In the second part of the thesis, I describe an FPGA-based read-out system for the DEPFET pixel detector of the new Belle II experiment. The system controls the pixel detector and processes its data as a stand-alone data acquisition system for detector characterization and as a high-performance read-out system at Belle II.
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I describe the development of a read-out system of the pixel detector at Belle II and the search for a rare D
+ decay at Belle. The rare D
+ decay is sensitive to physics beyond the standard model. I measured branching fraction with weak statistical significance, and therefore report an upper exclusion limit on the branching fraction. In the second part of the thesis, I describe an FPGA-based read-out system for the DEPFET pixel detector of the new Belle II experiment. The system controls the pixe...
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