Precise correction to parameter ρ in the littlest Higgs model

  • In this paper tree-level violation of weak isospin parameter, ρ in the frame of the littlest Higgs model is studied. The potentially large deviation from the standard model prediction for the ρ in terms of the littlest Higgs model parameters is calculated. The maximum value for ρ for f=1TeV, c=0.05,c′= 0.05 and υ′= 1.5GeV is ρ=1.2973 which means a large enhancement than the SM.
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Farshid Tabbakh and F.Farnoudi. Precise correction to parameter ρ in the littlest Higgs model[J]. Chinese Physics C, 2008, 32(2): 100-103. doi: 10.1088/1674-1137/32/2/005
Farshid Tabbakh and F.Farnoudi. Precise correction to parameter ρ in the littlest Higgs model[J]. Chinese Physics C, 2008, 32(2): 100-103.  doi: 10.1088/1674-1137/32/2/005 shu
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Received: 2007-03-19
Revised: 2007-05-14
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Precise correction to parameter ρ in the littlest Higgs model

    Corresponding author: Farshid Tabbakh,

Abstract: In this paper tree-level violation of weak isospin parameter, ρ in the frame of the littlest Higgs model is studied. The potentially large deviation from the standard model prediction for the ρ in terms of the littlest Higgs model parameters is calculated. The maximum value for ρ for f=1TeV, c=0.05,c′= 0.05 and υ′= 1.5GeV is ρ=1.2973 which means a large enhancement than the SM.

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