Naturalness and Focus Points with Non-Universal Gaugino Masses

Understand

Relations between the gaugino masses have been shown to alleviate the degree of fine-tuning in the MSSM.

• In this paper we consider specific models of supersymmetry breaking with gravity mediation and demonstrate that within both GUT and string constructions it is possible to generate these relations in a natural way.
• We have numerically studied the degree of fine-tuning in these models, including one-loop corrections, and have found regions of parameter space that can satisfy all known collider constraints with fine-tunings less than 20%.
• We discuss some of the phenomenological features of these models within the regions of reduced fine-tuning.