B-L mediated SUSY breaking with radiative B-L symmetry breaking

TL;DR

This paper proposes a mechanism where radiative B-L symmetry breaking in SUSY models links neutrino masses to Z'-mediated SUSY breaking, resulting in a potentially light gluino and compressed gaugino spectra relevant for LHC searches.

Contribution

It introduces a novel radiative B-L symmetry breaking mechanism that connects neutrino mass scales with Z'-mediated SUSY breaking, predicting distinctive gaugino mass spectra.

Findings

B-L symmetry breaking scale is around 10^6 GeV.

Gluino mass can be relatively light at the weak scale.

Compressed gaugino spectra are achievable in this scenario.

Abstract

We explore a mechanism of radiative B-L symmetry breaking in analogous to the radiative electroweak symmetry breaking. The breaking scale of B-L symmetry is related to the neutrino masses through the see-saw mechanism. Once we incorporate the U(1)(B-L) gauge symmetry in SUSY models, the U(1)(B-L) gaugino appears, and it can mediate the SUSY breaking (Z-prime mediated SUSY breaking) at around the scale of 10^6 GeV. Then we find a links between the neutrino mass (more precisly the see-saw or B-L scale of order 10^6 GeV) and the Z-prime mediated SUSY breaking scale. It is also very interesting that the gluino at the weak scale becomes relatively light, and almost compressed mass spectra for the gaugino sector can be realized in this scenario, which is very interesting in scope of the LHC.