Grand Unified Theories and Higgs Physics

TL;DR

This paper discusses grand unified theories that address the doublet-triplet splitting problem and predicts specific collider signatures, offering potential experimental tests of GUT symmetry breaking.

Contribution

It introduces a GUT scenario that naturally solves the doublet-triplet splitting problem and predicts distinctive collider phenomenology for experimental verification.

Findings

Proposes a GUT model with natural doublet-triplet splitting

Predicts characteristic collider signatures of GUT symmetry breaking

Provides a framework for testing GUTs at current and future colliders

Abstract

The grand unified theories are theoretically well motivated, but they typically have less direct indications on the low energy physics and it is not easy to test them. Here, we discuss a scenario of them which naturally solves the so-called doublet-triplet splitting problem and, at the same time, generally predicts characteristic collider phenomenology. Then, we may get a hint on the breaking of the grand unified symmetry at the on-going and next-generation collider experiments.