SUSY Contributions to R_b and Top Quark Decay

Details SUSY Contributions to R_b and Top Quark Decay SUSY Contributions to R_b and Top Quark Decay

1996-05-31

arxiv.org/abs/hep-ph/9605447v1

Phys.Rev. D54 (1996) 5598-5605

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, LaTeX, 4 figures enhanced postscript

Scientific paper

10.1103/PhysRevD.54.5598

Stop contributions to radiative corrections to R_b and the top quark decay are analysed over the relevant MSSM parameter space. One sees a 30 % increase in the former along with a similar drop in the latter in going from the higgsino dominated to the mixed region. Consequently one can get a viable SUSY contribution to R_b within the constraint of the top quark data only in the mixed region, corresponding to a photino dominated LSP. We discuss the phenomenological implications of this model for top quark decay and direct stop production, which can be tested with the Tevatron data.

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