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arXiv · hep-ph/9405419

Is the stop mass below the top mass?

W. de Boer·R. Ehret·D. I. Kazakov
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Abstract

It is shown that a top mass of 174+/-17 GeV, as quoted recently by the CDF Collaboration, constrains the mixing angle between the Higgs doublets in the Minimal Supersymmmetric extension of the Standard Model (MSSM) to: 1.2<tan beta<5.5 at the 90% C.L.. The most probable value corresponds to tan beta = 1.56; such a small value causes a large mixing in the stop sector and the lightest stop is likely to be below the top mass. In this case the stop production in pp_bar collisions would contribute to the top signature, thus providing a possible explanation for the large effective tt_bar cross section observed by CDF.

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W. de Boer, R. Ehret, D. I. Kazakov. 1994-05-30. Is the stop mass below the top mass?. https://doi.org/10.1016/0370-2693(94)90615-7

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