Mariusz Witek

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This Technical Design Report is dedicated to Tom Ypsilantis. Tom conceived the Ring Imaging Cherenkov detectors for particle identification in LHCb and he made an inestimable contribution to the LHCb RICH project. Tom would have wished to see these detectors in operation. He was totally dedicated to the project. He will be missed by the RICH group for his(More)
The main features of the Cloud Computing system developed at IFJ PAN are described. The project is financed from the structural resources provided by the European Commission and the Polish Ministry of Science and Higher Education (Innovative Economy, National Cohesion Strategy). The system delivers a solution for carrying out computer calculations on a(More)
During LEP running in 1995 and 1996, DELPHI accumulated data at centre-of-mass energies ranging from 130 GeV to 172 GeV. Searches were performed for events containing four nal-state fermions in the l + l ? q q, q q and l + l ? l + l ? channels. The number of events detected was found to be consistent with Standard Model predictions.
A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed correspond to an integrated luminos-ity of about 48 pb 1 at an e + e centre-of-mass energy of 183 GeV and about 20 pb 1 equally shared between the centre-of-mass(More)
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