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Littlest Higgs model and associated ZH production at high energy e+e− collider
hep-ph/0309113 v2 17 Oct 2003,-0001,():
In the context of the littlest Higgs (LH) model, we consider the Higgs strahlung process e+e−→ZH. We find that the correction effects on this pro-cess mainly come from the heavy photon B'. If we take the mixing angle parameter c in the range of 0.75-1, the contributions of the heavy gauge boson W'3 is larger than 6%. In most of the parameter space, the deviation of the total production cross section tot from its SM value is larger than 5%, which may be detected in the future high energy e+e−collider (LC) experiments. The future LC experiments could test the LH model by measuring the cross section of the process e+e−→ZH.
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