3,483 research outputs found

    Influence of SU(2)U(1)SU(2) \otimes U(1) singlet scalars on Higgs boson signal at LHC

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    We investigate a model of SU(2)U(1)SU(2) \otimes U(1) singlet scalars coupled to Standard Model. We point out that for the case of maximal mixing between singlet scalars and standard Higgs boson the Higgs boson production cross section is smaller than the standard Higgs boson production by factor 1N+1\frac{1}{N+1}, where N is the number of singlet scalar scalars. For the case of big mixing Higgs boson could be nonobservable at LHC. However, there is also a possibility for the observation of scalar singlets at LHC. As a quasirealistic example we discuss a supersymmetric SU(2)U(1)SU(2) \otimes U(1) electroweak model with an additional gauge singlet chiral superfield.Comment: 9 pages, latex, no figure

    Search for Standard Higgs Boson at Supercolliders

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    We review the standard Higgs boson physics and the search for higgs boson at LEP and LHC supercollidersComment: latex, 70 pages, 15 ps.figure