Muon g - 2 in the Littlest Higgs Model |
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Authors: | Farshid Tabbakh LIU Jing-Jing MA Wen-Gan |
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Institution: | Department of Modern Physics, University of
Science and Technology of China (USTC), Hefei 230027, China |
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Abstract: | In this paper the anomalous magnetic
dipole moment of muon in the
littlest Higgs (LH) model is studied at one-loop level. We discuss the
dependence of the contributions on the global symmetry breaking scale f, mixing angles c and cˊ, and the Higgs triplet vacuum expectation value
vˊ in the electroweak precision data
preferring ranges. We find that the LH model can give a relatively
small, but non-negligible extra weak contribution to the muon
anomalous magnetic moment and can reduce the deviation of
Δaμ from 2.6σ for the SM to 2.5σ for the LH model. |
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Keywords: | littlest Higgs model anomalous magnetic dipole moment of muon |
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