TeV-Scale Horizontal Symmetry and the Slepton Mass Problem of Anomaly Mediation
摘要
We propose a new scenario for solving the tachyonic slepton mass problem of anomaly mediated supersymmetry breaking models with a non-Abelian horizontal gauge symmetry broken at the TeV scale. A specific model based on SU(3)_{H} horizontal symmetry is presented wherein the sleptons receive positive mass-squared from the asymptotically free SU(3)_{H} gauge sector. Approximate global symmetries present in the model strongly suppress flavor changing processes induced by the horizontal vector gauge bosons. The model predicts m_{h} < 120 GeV for the lightest Higgs boson mass, tan{beta} nearly equal to 4, and M_V = 1-4 TeV for the SU(3)_{H} gauge boson masses. The lightest SUSY particle is found to be the neutral Wino, which is a candidate for cold dark matter.
关键词
引用
@article{arxiv.hep-ph/0312176,
title = {TeV-Scale Horizontal Symmetry and the Slepton Mass Problem of Anomaly Mediation},
author = {O. C. Anoka and K. S. Babu and I. Gogoladze},
journal= {arXiv preprint arXiv:hep-ph/0312176},
year = {2009}
}
备注
25 pages in LaTeX, 2 eps figures