1207.4868 (Yao Yu et al.)

Oblique Corrections in the MSSM at One Loop. II. Fermions    [PDF]

Yao Yu, Sibo Zheng

This paper is the completion of an earlier work which involves the derivation of oblique corrections in the MSSM at one-loop. In terms of the two-component spinor formalism, which is new in compared with those used in the literature, the contributions arising from the fermion superpartners i.e, neutralino-chargino sector to self-energy of standard model electroweak gauge bosons are calculated. Corresponding descendants the $S$, $T$ and $U$ parameters are presented. The validity of our results is examined in two ways, which are then followed by detailed analysis on the results in the literature.

View original: http://arxiv.org/abs/1207.4868