%0 Journal Article
%T String completion of an SU(3)(c) x SU(3)(L) x U(1)(X) electroweak model
%A Addazi, A.
%A Valle, J. W. F.
%A Vaquera-Araujo, C. A.
%J Physics Letters B
%D 2016
%V 759
%I Elsevier Science Bv
%@ 0370-2693
%G English
%F Addazi_etal2016
%O WOS:000380409200063
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2884), last updated on Thu, 29 Dec 2016 12:46:23 +0000
%X The extended electroweak SU(3)(c) circle times SU(3)(L) circle times U(1)(X) symmetry framework "explaining" the number of fermion families is revisited. While 331-based schemes can not easily be unified within the conventional field theory sense, we show how to do it within an approach based on D-branes and (un)oriented open strings, on Calabi-Yau singularities. We show how the theory can be UV-completed in a quiver setup, free of gauge and string anomalies. Lepton and baryon numbers are perturbatively conserved, so neutrinos are Dirac-type, and their lightness results from a novel TeV scale seesaw mechanism. Dynamical violation of baryon number by exotic instantons could induce neutron-antineutron oscillations, with proton decay and other dangerous R-parity violating processes strictly forbidden. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
%K Unification
%K Branes
%K String phenomenology
%K Neutrino mass
%K Neutron-antineutron oscillations
%R 10.1016/j.physletb.2016.06.015
%U http://arxiv.org/abs/1604.02117
%U https://doi.org/10.1016/j.physletb.2016.06.015
%P 471-478