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Consequences of a unified, anarchical model of fermion masses and mixings

Calibbi L
•
Ferretti L
•
Romanino A
•
Ziegler R
2009
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
We show that most features of the mass and mixing pattern of the second and third SM fermion families can be accounted for without making use of flavour symmetries or other types of flavour dynamics. We discuss the implications for flavour phenomenology, in particular for the tau -> mu gamma decay rate, and comment on LFV effects at colliders. We show that the model can be embedded in a full SO(10) supersymmetric GUT in 5 dimensions that preserves the successful MSSM gauge coupling unification prediction for alpha(s). Interesting features of this embedding are i) the connection of one of the hierarchy parameters with the strong coupling assumption, ii) the absence of KK threshold effects on the alpha(s) prediction at one loop, and iii) the shift of the GUT scale up to about 10(17) GeV. Proton decay is under control, also due to the larger GUT scale. A large atmospheric angle for normal hierarchical neutrinos is obtained in an unusual way.
DOI
10.1088/1126-6708/2009/03/031
WOS
WOS:000265600800031
Archivio
http://hdl.handle.net/20.500.11767/12339
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-67649525389
https://doi.org/10.1088/1126-6708/2009/03/031
Diritti
open access
Soggetti
  • Rare Decay

  • Beyond Standard Model...

  • Quark Masses and SM P...

  • GUT

Scopus© citazioni
6
Data di acquisizione
Jun 7, 2022
Vedi dettagli
Web of Science© citazioni
4
Data di acquisizione
Mar 15, 2024
Visualizzazioni
3
Data di acquisizione
Apr 19, 2024
Vedi dettagli
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