1207.4867 (Yao Yu et al.)

Oblique Corrections in the MSSM at One Loop. I. Scalars    [PDF]

Yao Yu, Sibo Zheng

The one-loop oblique corrections in the context of MSSM is reconsidered due to some paradoxes in the literature. This paper is devoted to calculate the oblique corrections arising from the bosonic superpartners in MSSM, i.e, the squarks, the sleptons and the scalars in Higgs sector as the first step towards to classifying the final answer. We explicitly present the complete one-loop forms of self-energy corrections to the gauge bosons of SM electroweak gauge groups, and their descendants the $S$, $T$ and $U$ parameters. Most of our results are found to neither agree with those of \cite{Group2A}, nor with \cite{SUSY} in the Higgs sector. We make a detailed analysis on these differences.

View original: http://arxiv.org/abs/1207.4867