Standard Higgs search at future hadron colliders

The present note gives a brief review on the possibility of the Higgs particle search at future hadron colliders, SSC and/or LHC. The aim of the review is to introduce current information on Higgs search at future hadron colliders with an emphasis on experimental aspects. Some preliminary work by Monte Carlo simulations is also outlined. A brief and incomplete collection of the detection feasibility studies on the intermediate and heavy mass Higgs boson at future badron collider is presented. The summary is limited to the standard neutral Higgs boson. At future hadron colliders with integrated luminosity of 1040cm-2, it is shown that the detection is feasible in the mass range of 200-500GeV/c2 through the 4-lepton decay mode (H→ZZ→1111). For the Higgs mass of above 500GeV/c2, the 2-lepton 2-neutrino decay mode (H→ZZ→11νν) is quite promising with a detector having good hermeticity. It is expected that the quark-jet tagging would reduce the QCD backgrounds substantially. The detection feasibility of the intermediate-mass Higgs boson depends on the top mass. However, by combining various decay modes, H→γγ, Zγ, ZZ*, τ+τ- and (b b-bar), it seems to be possible to cover the mass range of 100-200 Gev/c2. (Nogami, K.)