Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10495/8628
Título : Neutrino masses in SU(5) X U(1)F with adjoint flavons
Autor : Nardi, Enrico
Restrepo Quintero, Diego Alejandro
Velásquez López, Mauricio de Jesús
metadata.dc.subject.*: Neutrinos
Masa (Física)
Mass (physics)
Fecha de publicación : 2012
Editorial : Springer Verlag
Citación : Nardi, E., Restrepo Quintero, D. A., & Velásquez López, M. de J. (2012). Neutrino masses in SU(5) X U(1)F with adjoint flavons. European Physical Journal C. 72(1941), 1-9. DOI:10.1140/epjc/s10052-012-1941-1
Resumen : ABSTRACT: We present a SU(5) x U(1)F supersymmetric model for neutrino masses and mixings that implements the seesaw mechanism by means of the heavy SU(2) singlets and triplets states contained in three adjoints of SU(5). We discuss how Abelian U(1)F symmetries can naturally yield non-hierarchical light neutrinos even when the heavy states are strongly hierarchical, and how it can also ensure that R{parity arises as an exact accidental symmetry. By assigning two flavons that break U(1)F to the adjoint representation of SU(5) and assuming universality for all the fundamental couplings, the coe cients of the e ective Yukawa and Majorana mass operators become calculable in terms of group theoretical quantities. There is a single free parameter in the model, however, at leading order the structure of the light neutrinos mass matrix is determined in a parameter independent way.
ISSN : 1434-6052
metadata.dc.identifier.doi: 14346044
Aparece en las colecciones: Artículos de Revista en Ciencias Exactas y Naturales

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