Journal
PHYSICS LETTERS B
Volume 813, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2020.136039
Keywords
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Funding
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brasil (CAPES) [001]
- Conselho Nacional de Desenvolvimento Cientifico (CNPq) [422227/2018-8]
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Researchers propose a novel mechanism to solve a puzzle in grand unified theories, relying on the clockwork mechanism to generate large discrepancies. In this scenario, the tension between gauge coupling unification and proton lifetime from minimal SU(5) GUTs is also eliminated.
Maybe the biggest puzzle in grand unified theories (GUTs) is the apparent large splitting of the doublet and triplet Higgs masses. We suggest a novel mechanism to solve this puzzle, which relies on the clockwork mechanism to generate large hierarchies from order-one numbers. The tension between gauge coupling unification and proton lifetime from minimal SU(5) GUTs is also removed in this scenario, and the theory remains perturbative until the Planck scale. We comment on a possible extra dimensional implementation of the idea. (C) 2020 The Author. Published by Elsevier B.V.
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