Student info and photos:A

People
Work Description

Matteo ALFONSI
Laboratori Nazionali di Frascati
matteo.alfonsi@lnf.infn.it

I performed my degree thesis in a LNF-INFN collaboration on the development of a detector based on Gas Electron Multiplier (GEM) technology. This detector is studied for the innermost part of the first muon station of the LHCb experiment, where a high rate capability is required. The required high time resolution has been achieved with a fast CF4 based gas mixture, leading to a new result for this new detector. Now, as LNF-INFN fellowship, I'm working on the understanding of possible aging/etching effects that the large amount of CF4 could introduce on the detector. In this framework we are performing tests in order to simulate as much as possible the LHCb environments, and also tests in environments with worse experimental conditions. Moreover, I'm working on the final layout of the detector for the experiment.

Sarah ALLWOOD
University of Manchester
sea@hep.man.ac.uk

For my Ph.D. thesis I am working on ATLAS, one of the general purpose detectors to be installed at the LHC at CERN. I have been investigating the sensitivity of ATLAS to possible scalar and vector resonances of around 1 TeV in WW scattering. I have looked at the semileptonic decay mode and studied the effect of the fast detector simulation ATLFAST on the cuts for this analysis. I have investigated how to optimise the reconstruction of the hadronically decaying W by varying parameters in the cone algorithm and have compared the results with those from the kt algorithm. I am now looking further at the use of the kt algorithm.

Silvia AMERIO
University of Trento
amerio@tn.infn.it

For my PhD I'm working on CDF experiment. CDF is one of the detectors operating at the Tevatron proton-antiproton collider at Fermilab. During the first year of PhD I developed a C++ code for a new method, called the Hyperball algorithm,to use to the fullest the kinematical information of WH decays and correct the measured mass of the two b-quark jets. Such code is projected to be general enough to be applied to a variety of different problems, like an optimization of the b-quark tag rate matrix. I'm also working on tracking, vertexing and alignment for the CDF-II Silicon Detector.

Dmitry ARKHIPKIN
JINR, Moscow
dmaa@sunse.jinr.ru

I am a member of the STAR collaboration at RHIC .The subject of my current research is electron signal extraction in dAu data at energy √200 GeV using information from barrel electromagnetic calorimeter (BEMC) and time projection chamber of STAR detector. The identifying procedure, which I proposed, is emphasized on developing a number of cuts characterizing electron signal in the BEMC as well as in the shower maximum detector (SMD) which is the key part of the BEMC. Also, during the last experimental run at STAR I was deeply involved in activity supporting detector performance including BEMC and SMD calibration, quality control of data taking. My physics interests are related with charm quark production in AuAu- and dA- collisions at RHIC.

Catherine Cart 02/2004