Gauge Mediated SUSY Breaking via Seesaw

TL;DR

This paper proposes a gauge mediated supersymmetry breaking model where messengers also generate neutrino masses via Type I and III seesaw mechanisms, resulting in a highly constrained and calculable supersymmetric spectrum.

Contribution

It introduces a novel 'nu-GMSB' framework linking neutrino mass generation with gauge mediated SUSY breaking, reducing free parameters and constraining the spectrum.

Findings

Supersymmetric spectrum and Higgs masses are calculable from four parameters.

Electroweak symmetry breaking occurs through a doubly radiative mechanism.

The model predicts specific properties for supersymmetric particles.

Abstract

We present a simple scenario for gauge mediated supersymmetry breaking where the messengers are also the fields that generate neutrino masses. We show that the simplest such scenario corresponds to the case where neutrino masses are generated through the Type I and Type III seesaw mechanisms. The entire supersymmetric spectrum and Higgs masses are calculable from only four input parameters. Since the electroweak symmetry is broken through a doubly radiative mechanism, meaning a nearly zero B-term at the messenger scale which runs down to acceptable values, one obtains quite a constrained spectrum for the supersymmetric particles whose properties we describe. We refer to this mechanism as "nu-GMSB".