Mainz 2004 – wissenschaftliches Programm
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T: Teilchenphysik
T 604: Higgs III
T 604.8: Vortrag
Donnerstag, 1. April 2004, 12:15–12:30, HS V
Higgs Mass Measurement at TESLA — •Alexei Raspereza1, Klaus Desch2, and Wolfgang Lohmann3 — 1DESY, Notkestrasse 85, 22603 Hamburg — 2Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg — 3DESY, Platanenallee 6, 15738 Zeuthen
Following the discovery of the Higgs boson at TEVATRON or LHC, the precise determination of the Higgs boson profile will be one of the main objectives at a future linear e+e− collider. We review methods to determine Higgs boson mass with TESLA detector operated at center-of-mass energy of 350 GeV. Discussed methods are based on the reconstruction of final states resulting from the Higgs-strahlung process followed by the Z→ ℓ+ℓ−, qq and H→ bb,W+W− decays. The precision of the mass measurement is estimated for the Higgs boson mass ranging from 120 to 180 GeV, assuming an integrated luminosity of 500 fb−1. Particular emphasis is given to the discussion of systematic effects on the Higgs boson mass measurement. Systematic errors resulting from the uncertainty in the luminosity spectrum and beam energy measurements and from backgrounds induced by beamstrahlung are studied in detail.