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arXiv · 2308.11705

A Generalised Missing Partner Mechanism for SU(5) GUT Inflation

Stefan Antusch·Kevin Hinze·Shaikh Saad·Jonathan Steiner
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Abstract

We generalise the Missing Partner Mechanism to split the electron-like states from the coloured ones of vectorlike SU(5) 10-plets without fine-tuning. Together with the extra light weak doublets from the Double Missing Partner Mechanism (DMPM), this realises gauge coupling unification in the presence of a light weak triplet and colour octet, the characteristic light relics from the adjoint in SU(5) GUT Inflation models. Additionally, we show how the vectorlike 10-plets may generate realistic fermion masses while the DMPM ensures that dimension five nucleon decay is suppressed. A discovery of the light relic states at future colliders would provide a "smoking gun" signal of the scenario.

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Stefan Antusch, Kevin Hinze, Shaikh Saad, Jonathan Steiner. 2023-08-22. A Generalised Missing Partner Mechanism for SU(5) GUT Inflation. https://arxiv.org/abs/2308.11705

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