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Abstract: We consider supersymmetric grand unified theory GUT with the gauginomediated supersymmetry breaking and investigate a possibility to discriminatedifferent GUT models in terms of predicted sparticle mass spectra. Taking twoexample GUT models, the minimal SU5 and simple SO10 models, and imposing avariety of theoretical and experimental constraints, we calculate sparticlemasses. Fixing parameters of each model so as to result in the same mass ofneutralino as the lightest supersymmetric particle LSP, giving the observeddark matter relic density, we find sizable mass differences in the left-handedslepton and right-handed down-type squark sectors in two models, which can be aprobe to discriminate the GUT models realized at the GUT scale far beyond thereach of collider experiments.



Autor: Nobuchika Okada, Hieu Minh Tran

Fuente: https://arxiv.org/







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