Building SO 10 -models withD4symmetry
نویسندگان
چکیده
منابع مشابه
Constraining supersymmetric SO(10) models through cosmology.
We study the impact of the symmetry breaking patterns from supersymmetric SO(10) down to the standard model on the standard big-bang cosmology through the formation of topological defects. None of the models is consistent with the standard cosmology without invoking any mechanism to solve the monopole problem. For this purpose, we use a hybrid false vacuum inflationary scenario. Only two symmet...
متن کاملSO(10) unified models and soft leptogenesis
Motivated by the fact that, in some realistic models combining SO(10) GUTs and flavour symmetries, it is not possible to achieve the required baryon asymmetry through the CP asymmetry generated in the decay of right-handed neutrinos, we take a fresh look on how deep this connection is in SO(10). The common characteristics of these models are that they use the see-saw with right-handed neutrinos...
متن کاملNew Constraints on SO(10) Model-Building from String Theory
A recent analysis of the methods by which higher-level gauge symmetries are realized in string theory has made it possible to systematically obtain new constraints on string GUT model-building. In this paper, we perform such a study for the case of SO(10) string GUT models, and find a number of significant new results. We find, for example, that free-field heterotic string models can never give...
متن کاملCosmological implications of a class of SO(10) models
It is well known that the electroweak standard model is now established with incredible high precision. The dream of many physicists about a higher degree of unification, realized by assuming a larger gauge group at higher energies, cannot be tested by using the usual accelerator approach. The typical signature of GUT theories, the baryonic matter instability, has not been found so far but the ...
متن کاملRelic density in SO(10) SUSY GUT models
Non-universal boundary conditions in grand unified theories can lead to non-universal gaugino masses at the unification scale. In R-parity preserving theories the lightest supersymmetric particle is a natural candidate for the dark matter. In this talk the composition of the lightest neutralino is studied, when nonuniversal gaugino masses come from representations of SO(10). In these cases, the...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2015
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2015.10.004