What question did this study set out to answer?

The research aims to develop low-energy phenomenology closure based on the SO(10)-compatible QDL benchmark established in previous work.

April 26, 2026Open Access

Low-Energy Phenomenology Closure of the Preferred SO(10)-Compatible QDL Completion

Key Points

The research aims to develop low-energy phenomenology closure based on the SO(10)-compatible QDL benchmark established in previous work.
Builds on the fixed SO(10)-compatible QDL benchmark established in Paper #1.
Extracts indirect low-energy signatures related to standard model physics.
Provides criteria for explicit support or falsification of the benchmark's claims.
Identifies several low-energy signatures including visible physics and small neutrinoless double beta benchmark.
Highlights compatibility with baryogenesis and proton decay exposure.
Discusses collider null expectations and their implications for future research.

Abstract

This record is Paper #2 in the QDL–SO10–1 benchmark sequence. It develops the low-energy phenomenology closure of the fixed SO(10)-compatible QDL benchmark introduced in Paper #1. The paper extracts the benchmark’s indirect low-energy signatures: Standard-Model-like visible physics, high-scale singlet-neutrino remnant structure, small neutrinoless-double-beta benchmark, baryogenesis-facing compatibility, proton-decay exposure, collider null expectations, and explicit support/falsification criteria. It is a consequence and traceability paper, not a new ultraviolet benchmark or a complete global scan. All low-energy claims are traced to the fixed QDL–SO10–1 benchmark defined in Paper #1: Bourassa, J. D. (2026). An SO(10)-Compatible QDL Grand-Unification Benchmark with Two-Loop Running, Threshold Matching, and Proton-Decay Exposure (Version 1.0). Zenodo. https://doi.org/10.5281/zenodo.19742963.

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