Determining resonance parameters of heavy Higgs bosonsat a future linear collider
Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
2 DESY, Notkestraße 85, 22607, Hamburg, Germany
This study investigates the potential of an Electron-Positron Linear Collider for measuring resonance parameters of Higgs bosons beyond the mass range studied so far. The analysis is based on the reconstruction of events from the Higgs-strahlung process . It is shown that the total width , the mass m H and the event rate N can be measured from the mass spectrum in a model independent way. Also, the branching ratios BR H WW and BR H ZZ can be measured, assuming these are the only relevant Higgs decay modes. The simulation includes realistic detector effects and all relevant Standard Model background processes. Results are given for m H = 200-320 GeV assuming fb-1 integrated luminosity at a collision energy GeV.
© Springer-Verlag, 2004