arXiv:hep-ph/9601293·v1·High Energy Physics — Phenomenology

Phenomenological implications of light stop and higgsinos

Andrea Brignole (CERN-TH) · Ferruccio Feruglio (Padua Univ.) · Fabio Zwirner (CERN-TH and INFN,Padua)

Abstract

We examine the phenomenological implications of light $t ~_{R}$ and higgsinos in the Minimal Supersymmetric Standard Model, assuming $tan^{2} β < m_{t} / m_{b}$ and heavy $t ~_{L}$ and gauginos. In this simplified setting, we study the contributions to $Δ m_{B_{d}}$ , $ϵ_{K}$ , $B R (b \to s γ)$ , $R_{b} \equiv Γ (Z \to b b) /Γ (Z \to hadrons)$ , $B R (t \to bW)$ , and their interplay.

Comments: plain LATEX, 6 figures, 23 A4 pages