arXiv:hep-ph/0107255·v2·High Energy Physics — Phenomenology
DREDed Anomaly Mediation
Ed Boyda (1)🇺🇸 · Hitoshi Murayama (1 and 2)🇺🇸 · Aaron Pierce (1 and 2) ((1) UC-Berkeley, (2) Lawrence Berkeley National Laboratory)🇺🇸
Abstract
We offer a guide to dimensional reduction (DRED) in theories with anomaly mediated supersymmetry breaking. Evanescent operators proportional to epsilon arise in the bare Lagrangian when it is reduced from d=4 to d= (4-2 epsilon) dimensions. In the course of a detailed diagrammatic calculation, we show that inclusion of these operators is crucial. The evanescent operators conspire to drive the supersymmetry-breaking parameters along anomaly-mediation trajectories across heavy particle thresholds, guaranteeing the ultraviolet insensitivity.
Comments: 24 pages. 10 figures. Uses Axodraw. Reference added