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SU(5) Unification without Proton Decay

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arxiv 1706.08535 v2 pith:ZHHK4BA6 submitted 2017-06-26 hep-ph hep-th

Bartosz Fornal , Benjamin Grinstein This is my paper · ORCID
classification hep-phhep-th
keywords modelprotonirrepsstabilitywithoutabandoningabsolutebroken
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We construct a four-dimensional SU(5) grand unified theory in which the proton is stable. The Standard Model leptons reside in the 5 and 10 irreps of SU(5), whereas the quarks live in the 40 and 50 irreps. The SU(5) gauge symmetry is broken by the vacuum expectation values of the scalar 24 and 75 irreps. All non-Standard Model fields are heavy. Stability of the proton requires three relations between the parameters of the model to hold. However, abandoning the requirement of absolute proton stability, the model fulfills current experimental constraints without fine-tuning.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Topological multicomponent superconductivity with sizable $s$-wave admixture in twisted bilayer cuprates

    cond-mat.supr-con 2026-04 unverdicted novelty 6.0 of 10

    Twisted bilayer cuprates stabilize a topological multicomponent superconducting state with order parameter s + d1 e^{i phi1} + d2 e^{i phi2} that remains chiral despite s-wave pairing.

  2. Non-Renormalizable SU(5) GUTs: Leptoquark-Induced Neutrino Masses

    hep-ph 2025-04 conditional novelty 6.0 of 10

    The paper shows that non-renormalizable SU(5) models can host light scalar leptoquarks with suppressed proton decay while explaining neutrino masses and unifying gauge couplings.

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