Soft masses in SUSY SO(10) GUTs with low intermediate scales

TL;DR

This paper investigates how the soft SUSY breaking mass spectra in SUSY SO(10) GUTs with intermediate scales can reveal high-scale physics and distinguish between models, even if intermediate scales are beyond current collider reach.

Contribution

It identifies characteristic deviations in soft mass combinations in SUSY SO(10) models with intermediate scales, enabling model differentiation from mSugra and seesaw scenarios.

Findings

Characteristic deviations in soft masses can distinguish models

Intermediate scales influence TeV-scale soft parameters

Differences highlighted between SO(10) GUTs and seesaw models

Abstract

The specific shape of the squark, slepton and gaugino mass spectra, if measured with suficient accuracy, can provide invaluable information not only about the dynamics underpinning their origin at some very high scale such as the unification scale MG, but also about the intermediate scale physics encountered throughout their RGE evolution down to the energy scale accessible for the LHC. In this work, we study general features of the TeV scale soft SUSY breaking parameters stemming from a generic mSugra configuration within certain classes of SUSY SO(10) GUTs with different intermediate symmetries below MG. We show that particular combinations of soft masses show characteristic deviations from the mSugra limit in different models and thus, potentially, allow to distinguish between these, even if the new intermediate scales are outside the energy range probed at accelerators. We also compare our results to those obtained for the three minimal seesaw models with mSugra boundary conditions and discuss the main differences between those and our SO(10) based models.