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The branching ratio $R_{b}$ in the littlest Higgs model

Chongxing Yue·Wei Wang
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Abstract

In the context of the littlest Higgs(LH) model, we study the contributions of the new particles to the branching ratio $R_{b}$. We find that the contributions mainly dependent on the free parameters $f$, $c'$ and $x_{L}$. The precision measurement value of $R_{b}$ gives severe constraints on these free parameters.

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Chongxing Yue, Wei Wang. 2004-01-27. The branching ratio $R_{b}$ in the littlest Higgs model. https://doi.org/10.1016/j.nuclphysb.2004.01.033

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