Experimental research in particle physics: Detector development and data analysis

The thesis work reflects my motivation of getting a broad experience and expertise in experimental physics, more precisely in: Particle-, Astropartiocle- and Detector Physics. The latter is the basis for any modern experiments in Particle- and Astroparticle-Physics. Therefore, the work has been divided into detector development activities towards applications at the future International Linear Collider (ILC) as well as to data analysis related to two front-edge topics: the search for the Higgs boson (within CERN-ATLAS detector) and for Dark matter (within XENON100).