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Título

Fermion masses and the UV cutoff of the minimal realistic SU(5) model

Autor Dorsner, Ilja; Pérez, Pavel F.; Rodrigo, Germán
Palabras clave Grand unified theories
Supergravity unification
Renormalization group
Matching conditions
Proton stability
[PACS] Unified theories and models of strong and electroweak interactions
[PACS] Unification of couplings; mass relations
[PACS] Quark and lepton masses and mixing in electroweak interactions
[PACS] Neutrino mass and mixing
Fecha de publicación 7-jun-2007
EditorAmerican Physical Society
Citación Physical Review D 75(12): 125007 (2007)
ResumenWe investigate the predictions for fermion masses in the minimal realistic nonsupersymmetric SU(5) model with the standard model matter content. The possibility to achieve b-tau unification is studied taking into account all relevant effects. In addition, we show how to establish an upper bound on the ultraviolet cutoff Lambda of the theory which is compatible with the Yukawa couplings at the grand unified scale and proton decay. We find Lambda ~= 10^(17) GeV, to be considered a conservative upper bound on the cutoff. We also provide up-to-date values of all the fermions masses at the electroweak scale.
Descripción 8 pages, 4 figures.-- PACS nrs.: 12.10.Dm; 12.10.Kt; 12.15.Ff; 14.60.Pq.-- ISI Article Identifier: 000247625400067.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0607208
Versión del editorhttp://dx.doi.org/10.1103/PhysRevD.75.125007
URI http://hdl.handle.net/10261/9204
DOI10.1103/PhysRevD.75.125007
ISSN1550-7998
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