<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Analysis of Events with Isolated Leptons and Missing Transverse Momentum in ep Collisions at HERA"^^ . "A study of events with isolated leptons and missing transverse momentum in ep collisions is presented. Within the Standard Model (SM) such topologies are expected mainly from production of real W bosons with subsequent leptonic decay. This thesis continues the analysis of such events done in the HERA-1 period where an excess over the SM prediction was observed for events with high hadronic transverse momentum PTX > 25 GeV. New data of the HERA-2 period are added. The analysed data sample recorded in e+p collisions corresponds to an integrated luminosity of 220 pb-1 which is a factor of two more with respect to the HERA-1 analysis. The e-p data correspond to 186 pb-1 which is a factor of 13 more with respect to HERA-1. All three lepton generations (electrons muons and tau leptons) are analysed. In the electron and muon channels a total of 53 events are observed in 406 pb-1. This compares well to the SM expectation of 53.7 +- 6.5 events, dominated by W production. However a difference in the event rate is observed for different electron beam charges. In e+p data the excess of events with PTX > 25 GeV is sustained, while the e-p data agree with the SM. In the tau channel 18 events are observed in all HERA data, with 20+-3 expected from the SM. The events are dominated by irreducible background from charged currents. The contribution from W production amounts to about 22%. One event with PTX > 25 GeV is observed, where 1.4 +- 0.3 are expected from the SM."^^ . "2007" . . . . . . . . "Gerhard Immanuel"^^ . "Brandt"^^ . "Gerhard Immanuel Brandt"^^ . . . . . . "Analysis of Events with Isolated Leptons and Missing Transverse Momentum in ep Collisions at HERA (PDF)"^^ . . . "Brandt07.pdf"^^ . . . "Analysis of Events with Isolated Leptons and Missing Transverse Momentum in ep Collisions at HERA (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Analysis of Events with Isolated Leptons and Missing Transverse Momentum in ep Collisions at HERA (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Analysis of Events with Isolated Leptons and Missing Transverse Momentum in ep Collisions at HERA (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Analysis of Events with Isolated Leptons and Missing Transverse Momentum in ep Collisions at HERA (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Analysis of Events with Isolated Leptons and Missing Transverse Momentum in ep Collisions at HERA (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #7240 \n\nAnalysis of Events with Isolated Leptons and Missing Transverse Momentum in ep Collisions at HERA\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .