Gauge Mediation with Sequestered Supersymmetry Breaking
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
Gauge mediation models have two drawbacks, that is, the so-called \mu-problem and a lack of predictability of the gravitino dark matter abundance. We show that conformal sequestering in the supersymmetry breaking sector offers attractive solutions to both problems. The correct mass scale of the \mu and B_\mu terms is generated by taking the gravitino mass of O(100) GeV without causing the flavor-changing neutral-current problem. Moreover, a large anomalous dimension of the supersymmetry breaking field naturally realizes the small stau and neutralino mass difference required for the coannihilation to work yielding the right dark matter abundance.
Cite
@article{arxiv.0808.0848,
title = {Gauge Mediation with Sequestered Supersymmetry Breaking},
author = {Satoshi Shirai and Fuminobu Takahashi and T. T. Yanagida and Kazuya Yonekura},
journal= {arXiv preprint arXiv:0808.0848},
year = {2008}
}
Comments
23 pages, 4 figures, 2 tables