One-loop contributions of the super-partner particles to $e^{-}{e}^{+}\to W^{-}{W}^{+}$ in the MSSM

Abstract

One-loop contributions of super-partner particles to $W$-pair production at $e^{+}{e}^{-}$ collision are discussed in the MSSM. To obtain trustworthy results we test our calculation using three methods: (1) sum rules among form factors which result from the BRS invariance, (2) the decoupling theorem, (3) the high-energy stability. We examine the corrections taking into account constraints from the direct search experiments and the precision data. The results for the sfermion contributions are presented.

Comments: Proceedings of ICHEP2000 (July-August 2000, Osaka Japan), Talk given by Shinya Kanemura, 3 pages including 5 figures