$ν$-GMSB with Type III Seesaw and Phenomenology

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dc.creatorMohapatra, R. N.
dc.creatorOkada, Nobuchika
dc.creatorYu, Hai-Bo
dc.date2008-07-28
dc.date2008-08-11
dc.date.accessioned2026-07-07T11:45:10Z
dc.date.available2026-07-07T11:45:10Z
dc.descriptionWe show that when the supersymmetric SU(5) model is extended to explain small neutrino masses by the type III seesaw mechanism, the new {\bf 24}-dimensional fields needed for the purpose can act as messengers for transmitting SUSY breaking from a hidden sector to the visible sector. For the three {\bf 24} case, the constraints of grand unification and suppressed lepton flavor violation restrict the seesaw scale in this case to be in the narrow range of $10^{12}-10^{13}$ GeV. The model predicts (i) a stable LSP gravitino with mass in the range of 1-10 MeV which can be a cold dark matter of the universe; (ii) a stau NLSP which is detectable at LHC; (iii) a lower bound on the branching ratio $BR(μ\to e γ)$ larger than $10^{-14}$ testable by the ongoing MEG experiment as well as characteristic particle spectrum different from other SUSY breaking scenarios. We also discuss the case with two {\bf 24} fields, which is the minimal case that can explain neutrino oscillation data.
dc.description21 pages,5 figures
dc.identifierhttps://arxiv.org/abs/0807.4524
dc.identifierhttp://arxiv.org/abs/0807.4524
dc.identifierPhys.Rev.D78:075011,2008
dc.identifierdoi:10.1103/PhysRevD.78.075011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201793
dc.subjectHigh Energy Physics - Phenomenology
dc.title$ν$-GMSB with Type III Seesaw and Phenomenology
dc.typetext

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