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Threshold Corrections to Dimension-six Proton Decay Operators in Non-minimal SUSY SU(5) GUTs

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arxiv 1603.03568 v2 pith:MR27KOCX submitted 2016-03-11 hep-ph

Borut Bajc , Junji Hisano , Takumi Kuwahara , Yuji Omura This is my paper · ORCID
classification hep-ph
keywords thresholdcorrectionsdecayprotongrandhiggsmissing-partnermodel
verification ladder T0 review T1 audit T2 compute T3 formal
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We calculate the high and low scale threshold corrections to the D=6 proton decay mode in supersymmetric SU(5) grand unified theories with higher-dimensional representation Higgs multiplets. In particular, we focus on a missing-partner model in which the grand unified group is spontaneously broken by the 75-dimensional Higgs multiplet and the doublet-triplet splitting problem is solved. We find that in the missing-partner model the D=6 proton decay rate gets suppressed by about 60%, mainly due to the threshold effect at the GUT scale, while the SUSY-scale threshold corrections are found to be less prominent when sfermions are heavy.

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  1. Flipped $SU(5)$ GUT with conformal gravity from a single supermultiplet

    hep-th 2024-12 reject novelty 7.0 of 10

    A new superalgebra from the Grassmann envelope of E8(-24) is proposed as the origin of flipped SU(5) GUT plus conformal gravity, with three fermion generations and no superpartners.

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