Relaxed fine-tuning in models with nonuniversal gaugino masses
Relaxed fine-tuning in models with nonuniversal gaugino masses
We study, in a bottom-up approach, the fine-tuning problem between soft supersymmetry (SUSY) breaking parameters and the $\ensuremath{\mu}$ term for the successful electroweak symmetry breaking in the minimal supersymmetric standard model. It is shown that certain ratios among nonuniversal gaugino masses at the grand unified theory (GUT) scale are necessary …