Out of four years of my Ph.D. thesis I was employed 2 years by CERN as a Doctoral Student. My first year in CERN I worked in EP/TA-SD with the Pad-HPD (a fast, large area, highly pixelized Hybrid Photon Detector) development and with Tau-RICH (a project to investigate the limitations to use a RICH-technique for tau neutrino appearance detection). The second year I was employed in EP/ATT and worked with ATLAS Software. My main task was the development of a Material Service, giving integrated material of the ATLAS Inner Detector to reconstruction programs, reading from (GEANT) Detector Simulations. Since half a year ago I continued my Ph.D. in Uppsala University (Sweden), doing physics analysis for an Susy decay channel of the charged Higgs, using a fast ATLAS simulation.

I'm doing my Ph.D. thesis on ATLAS. As one of the all purpose detectors at the LHC ATLAS needs to make use of hadronically decaying tau leptons in certain decay channels of HIGGS bosons and in SUSY searches. I'm working at the algorithmens for descriminating these hadronic taus against different jet types. The detailed investigation of their performance is also part of the work. The updated knowledge of performance is implemented into the parametrised simulation of the ATLAS experiment.

For my Ph.D. thesis I am working on the ZEUS experiment at DESY. I am doing an analysis of the collected data. The analysis is concerned with the search for supersymmetric particles. In concrete I am looking for a process which can occure in the framework of the gauge mediated supersymmetry breaking scenario. The signal is caracterised by an isolated photon and missing transvers momentum in the detector. Besides this I am working as an assistend at the advanced practica of the University of Hamburg and I am working for the radiation monitor of the micro vertex detector at ZEUS.

For my PhD thesis I am working on physics studies for linear colliders. In the current analysis I am studying the determination of the parity of Higgs bosons using decays into tau leptons. The tau polarisation is accesible through angular distributions of the decay products. In particular, the transverse spin correlation of both tau leptons from a Higgs decay carry information about the Higgs parity. This information enables to distinguish between a CP-even Standard Model Higgs boson, a CP-odd A^0 as proposed for the MSSM, or even mixed scalar-pseudoscalar states. Using pionic one- and three-prong decays of the taus, I am testing feasibility and precision of proposed observables using simulated events, accounting also for detector performance and backgrounds.

For my Ph.D. thesis I am working for the LHCb experiment, a single-arm spectrometer which exploit the large bb production c.section of LHC in order to perform a wide range of studies of CP phenomena. My present work is to build a DaVinci Algorithm which successfully reconstruct the decay channel: Bs->J/Psi(mu+mu-)eta'(Pi+Pi-Eta) out of the possible ones in order to estimate the CP violation weak phase phi_s=-2delta_gamma and some mixing parameters from a simple asymmetry measurement. I am using MC data generated by the software: SICBMC, QQ, and BRUNEL to tune my selection algorithm. Main problems are to distinguish between eta' comming from Pi+Pi-Eta or Pi+PiGamma and the reconstruction of eta. So a poor resolution in eta' is expected.