Date: Wednesday 16th June 2004
Title: Supersymmetric Higgs-Bosons in hadronic final states at ATLAS
Speaker: Dr Juergen Thomas (Birmingham)
Abstract
One of the most important goals of the ATLAS experiment at the LHC is an
experimental confirmation of Supersymmetry. This model offers an elegant
solution to problems in the Standard Model, but postulates particles that
could not yet be detected. The Minimal Supersymmetric extension to the
Standard Model (MSSM) postulates four additional Higgs bosons, the
discovery of which would be evidence for the supersymmetric model.
In preparation for the operation of the ATLAS experiment, the discovery
potential for MSSM-Higgs bosons is studied using Monte-Carlo simulations.
The study presented here looks at the decay of heavy neutral MSSM-Higgs
bosons (m(A/H) > 500 GeV) into tau pairs, which then both decay in
hadronic mode.
Due to the small production cross sections, high rates from QCD background
and absence of a trigger lepton, the Level-1 trigger performance is of
crucial importance. The study therefore also includes an estimation of the
signal acceptance and trigger rates.