The light Higgs decay into tau-lepton pair: reconstruction in different production processes

Higgs boson production with decay into tau-lepton pair will be the key final state signature for the possible discovery at LHC collider. Depending on the assumed model, Standard Model or Minimal Supersymmetric Standard Model, different production mechanisms will contribute to the discovery potential. It is therefore important to study the sensitivity of the signal reconstruction efficiency on the topological features of the production mechanisms. Quantitative discussion is presented for the Higgs boson mass of 120 GeV and ATLAS detector at LHC.