Gaugino Mediation with Large Trilinears

TL;DR

This paper extends gaugino mediation models to include large trilinear couplings, expanding the parameter space and enabling a Higgs mass consistent with observations, while analyzing collider constraints.

Contribution

It introduces an extension to gaugino mediation that generates non-zero trilinear couplings, improving the model's phenomenological viability.

Findings

Allowed parameter points with various NLSP candidates.

Predicted Higgs mass compatible with experimental data.

Model remains consistent with LHC search constraints.

Abstract

Gaugino mediation is an attractive supersymmetry breaking scheme naturally avoiding flavor problems by suppressing the soft sfermion masses at a high-energy scale. We consider an extension of the original model which yields non-vanishing trilinear scalar couplings. This increases the viable parameter space predicting a sufficiently large Higgs mass. Assuming the gravitino to be the lightest superparticle, we consider additional constraints from direct searches at the LHC, finding allowed points with a neutralino, sneutrino or stau next-to-lightest superparticle.