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

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

2001-11-10

arxiv.org/abs/hep-ph/0111124v1

J.Phys.G28:169-182,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 7 eps figures (to be published in J. Phys. G)

Scientific paper

10.1088/0954-3899/28/1/312

We investigated the electroweak corrections from one-loop diagrams involving the third generation (s)quarks to the decay width of process $\tilde{\chi}_1^+ \to W^+ \tilde{\chi}_1^{0}$ 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 $\tilde{\chi}_1^{0}$ and the sbottom mixing angle $\theta_{b}$, but depend strongly on the top squark mixing angle $\theta_{t}$ and tan$\beta$. 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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