Phenomenology of a string-inspired supersymmetric model with inverted scalar mass hierarchy

摘要

Supersymmetric (SUSY) models with heavy sfermions (m(f)similar to 10 TeV) in the first two generations and the third generation sfermion masses below 1 TeV can solve the SUSY flavor and the CP problems as well as satisfy naturalness constraints. We study the phenomenology of a string-inspired scenario and compare it with the minimal supergravity unified model (mSUGRA). The SUSY trilepton signature at the upgraded Tevatron, the b-->s gamma branching fraction and the neutralino dark matter relic density in this model can differ significantly from the mSUGRA model. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 47]