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arXiv · hep-ph/0205281

Gauge dependence and renormalization of $\tanβ$ in the MSSM

Ayres Freitas·Dominik Stöckinger
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Abstract

Well-known and newly developed renormalization schemes for $\tanβ$ are analyzed in view of three desirable properties: gauge independence, process independence, and numerical stability in perturbation theory. Arguments are provided that no scheme can meet all three requirements, and as an illustration, a ``No-Go-Theorem'' for the renormalization of $\tanβ$ is established. Nevertheless, two particularly attractive schemes emerge. A discussion about which scheme might be the best compromise in practice is given.

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Ayres Freitas, Dominik Stöckinger. 2004-05-24. Gauge dependence and renormalization of $\tanβ$ in the MSSM. https://doi.org/10.1103/physrevd.66.095014

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