Student info and photos:HIJ

People
Work Description

Johannes HALLER
Universität Heidelberg

haller@mail.desy.de

The subject of my Ph.D thesis is a search for squark production in R-parity violating supersymmetry at the ep collider HERA at DESY using the H1 detector. The data collected with an initial positron beam at sqrt(s)=300GeV (96/97) and at sqrt(s)=320GeV (99/00) are included in the analysis. Since no access in any of the possible decay channels has been found, limits in the SUSY parameter space are given for various models. In additon to this analysis I am involved in work of monitoring and improvement of the H1 liquid argon calorimeter. Main topic in this field are improvement and speeding-up of the online calibration after the luminosity upgrade of HERA.

Marc HOHLFELD
University of Mainz

hohlfeld@fnal.gov

For my diploma I completed a study on the determination of Higgs parameters in the ATLAS experiment at the LHC. Currently I am working for my Ph.D. on D0, one of the two detectors located at the p pbar collider Tevatron at Fermilab. The topic of my Ph.D. thesis is the search for the Higgs Boson in the H->WW channel with both W Bosons decaying leptonically. Here I can benefit from the expertise I obtained by studying this channel for ATLAS. In preparation for this Higgs search I analysed the data collected so far in the RunIIa with a focus on leptonic reconstruction algorithms. In addition to physics analysis I developed monitoring software for the D0 calorimeter. Furthermore I am involved in the online calibration of the calorimeter.

Paolo IENGO
Universita' "Federico II", Naples

paolo.iengo@cern.ch

For my Ph.D. thesis I am working in the ATLAS collaboration, a big general-purpose experiment that will operate at the LHC proton-proton collider at CERN. The ATLAS detector will have a large muon spectrometer using resistive plate counters (RPC) as trigger chambers in the barrelregion. The first part of my work was devoted to setting up the test site for the RPCs in Naples, the optimization of the reconstruction software,DAQ and slow control. I have participated to the quality control of RPC production and now I am working to the characterization and to the study of response of the real RPC ATLAS chambers.

Yauheni ILYUSHENKA
Joint Institute for Nuclear Research - JINR, Dubna

ilushenk@nusun.jinr.ru

At first I took part in the development hardware and software for the drift detectors tests. Drift detectors for the ATLAS Muon Spectrometer must be produced with a high accuracy and we attained this accurancy. Now I am working in the Chamber Assemling Group for the ATLAS Muon Spectrometer. I involved at the work of muon chamber assembling and test at the JINR production site, including final test at cosmic ray stend. This includes the development of the monitoring hardware, software and creating computer models for analyzing large amounts of data.

Claus Ekman JORGENSEN
Niels Bohr Institute.Copenhagen

ekman@nbi.dk

I'm a Ph.D. student at the experimental High Energy Heavy Ion group at the Niels Bohr Institute, Denmark. The group is involved in the BRAHMS experiment at RHIC and the ALICE at LHC. At the moment I'm mainly concentrating on data analysis from the Au+Au collisions data recorded with BRAHMS in 2001. The goals of my analysis is to obtain antiparticle-to-particle ratios for pions, kaons and protons and later to measure yields and inverse slope parameters for the different particle species.

Patricia Ilie 07/2002