Oblique Corrections in the MSSM at One-Loop—Part I : Scalars

Abstract EN

This paper is devoted to reconsider the one-loop oblique corrections arising from the scalar superpartners in the MSSM, that is, the squarks, the sleptons, and the scalars in Higgs sector.

We explicitly present the complete one-loop forms of self-energy corrections to the gauge bosons of SM electroweak gauge groups, as well as their descendants the S, T, and U parameters, which can be directly applied to constrain the parameter space of the MSSM.

Our results about one-loop self energies are found to agree with Drees et al.

(1992) and Pierce et al.

(1997).

Nevertheless, the S, T, and U parameters are not in agreement with Dobado et al.

(1999).