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Author  |
Addazi, A.; Valle, J.W.F.; Vaquera-Araujo, C.A. |
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Title |
String completion of an SU(3)(c) x SU(3)(L) x U(1)(X) electroweak model |
Type |
Journal Article |
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Year |
2016 |
Publication |
Physics Letters B |
Abbreviated Journal |
Phys. Lett. B |
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Volume |
759 |
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Pages |
471-478 |
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Keywords |
Unification; Branes; String phenomenology; Neutrino mass; Neutron-antineutron oscillations |
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Abstract |
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. |
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Address |
[Addazi, Andrea] Univ Aquila, Dipartimento Fis, I-67010 Coppito, AQ, Italy, Email: andrea.addazi@infn.lngs.it; |
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Publisher |
Elsevier Science Bv |
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Language |
English |
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Original Title |
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Series Volume |
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Edition |
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ISSN |
0370-2693 |
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Notes |
WOS:000380409200063 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2884 |
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