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Supersymmetric Electroweak Corrections to the Chargino Decay into Neutralino and W Boson

Zhang Ren-You·Ma Wen-Gan·Wan Lang-Hui
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Abstract

We investigated the electroweak corrections from one-loop diagrams involving the third generation (s)quarks to the decay width of process $\tildeχ_1^+ \to W^+ \tildeχ_1^{0}$ in the framework of the Minimal Supersymmetric Standard Model. Our calculation shows that these corrections are not very sensitive to the mass of the lightest neutralino $\tildeχ_1^{0}$ and the sbottom mixing angle $θ_{b}$, but depend strongly on the top squark mixing angle $θ_{t}$ and tan$β$. With our chosen parameters, we find that these radiative corrections can exceed 10%, therefore they should be taken into account for the precise experimental measurement at future colliders.

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Zhang Ren-You, Ma Wen-Gan, Wan Lang-Hui. 2001-11-10. Supersymmetric Electroweak Corrections to the Chargino Decay into Neutralino and W Boson. https://doi.org/10.1088/0954-3899%2F28%2F1%2F312

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