# Naturalness and Focus Points with Non-Universal Gaugino Masses

**Authors:** D. Horton, G. G. Ross

arXiv: 0908.0857 · 2010-02-03

## TL;DR

This paper explores models of supersymmetry breaking with non-universal gaugino masses that naturally reduce fine-tuning in the MSSM, satisfying collider constraints with minimal tuning.

## Contribution

It demonstrates that specific gravity-mediated SUSY breaking models can naturally generate gaugino mass relations that lower fine-tuning in the MSSM.

## Key findings

- Regions with less than 20% fine-tuning identified
- Models satisfy all collider constraints
- Phenomenological features discussed

## Abstract

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.

## Full text

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## Figures

37 figures with captions in the complete paper: https://tomesphere.com/paper/0908.0857/full.md

## References

56 references — full list in the complete paper: https://tomesphere.com/paper/0908.0857/full.md

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Source: https://tomesphere.com/paper/0908.0857