Journal
GUT2012
Volume 1467, Issue -, Pages 37-44Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4742077
Keywords
SO(10) Grand Unification; seesaw mechanism; proton decay; baryon and lepton number violation
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Funding
- DFG through the SFB/TR 9
- MarieCurie Intra European [PIEF-GA-2009-253119]
- EU Network [PITN-GA-2009-237920]
- Spanish MICINN [FPA2008-00319/FPA]
- MULTIDARK [AD2009-00064]
- Generalitat Valenciana [Prometeo/2009/091]
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We argue that non-supersymmetric SO(10) models based on a renormalizable Higgs sector in which spontaneous symmetry breaking is triggered by the VEVs of a 45-dimensional adjoint and a 126-dimensional tensor representations can provide a potentially realistic yet relatively simple framework for a future robust estimate of the proton lifetime. Following closely the work [1] we comment on the gauge unification constraints on the B-L breaking scale and show that there are several regions in the parameter space of the minimal model where the seesaw scale in the phenomenologically favoured ballpark of around 10(13+14) GeV is consistently supported.
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