Results 21 to 30 of about 1,069 (280)
Implications of the Muon g-2 result on the flavour structure of the lepton mass matrix
European Physical Journal C: Particles and Fields, 2021 The confirmation of the discrepancy with the Standard Model predictions in the anomalous magnetic moment by the Muon g-2 experiment at Fermilab points to a low scale of new physics.
Lorenzo Calibbi +3 more
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THE FLAVOUR PROBLEM AND FAMILY SYMMETRY [PDF]
String Phenomenology 2003, 2004 We show how two different family symmetries can be used to address the flavour problem in SO(10)-like models. The first is based on a gauged $U(1)_F$, whose problems dissappear in the context of a type I string model embedding. The second is based on $SU(3)_F$, the maximal family group consistent with SO(10); in this case the family symmetry is more ...
King, S.F., Peddie, I.N.R
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European Physical Journal C: Particles and Fields, 2023 We investigate flavour bounds on the $${\mathcal {Z}}_2 \times {\mathcal {Z}}_5$$ Z 2 × Z 5 and $${\mathcal {Z}}_2 \times {\mathcal {Z}}_9$$ Z 2 × Z 9 flavour symmetries.
Gauhar Abbas +3 more
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Flavor anomalies meet flavor symmetry
Physical Review D, 2023 71 pages + appendices, 27 figures Matches version accepted for publication in Physical Review ...
Innes Bigaran +3 more
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Journal of High Energy Physics, 2023 We present the first complete model of the Littlest Modular Seesaw, based on two right-handed neutrinos, within the framework of multiple modular symmetries, justifying the use of multiple moduli fields which take their values at 3 specific stabilizers ...
Ivo de Medeiros Varzielas +2 more
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Combining Pati-Salam and flavour symmetries [PDF]
Journal of High Energy Physics, 2015 26 pages, 5 ...
Feldmann, Thorsten +3 more
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Consequences of a U(2) flavour symmetry [PDF]
Physics Letters B, 1997 While solving the supersymmetric flavour problem, a U(2) flavour symmetry might be at the origin of the pattern of fermion masses and mixings. The consequences of this hypothesis are spelled out concerning the parameters of the CKM matrix and their observability in B- and K-physics.
Barbieri R, Hall LJ, Romanino, Andrea
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Reviews of Modern Physics, 2021 We provide a general classification of flavour symmetries according to their interplay with the proper Poincare' and gauge groups and to their linear or nonlinear action in field space. We focus on the lepton sector and we review the different types of symmetries describing neutrino masses and the lepton mixing matrix.
Feruglio, F., Romanino, A.
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Two A5 modular symmetries for Golden Ratio 2 mixing
Nuclear Physics B, 2022 We present a model of leptonic mixing based on two A5 modular symmetries using the Weinberg operator. The two modular symmetries are broken to the respective diagonal A5 subgroup.
Ivo de Medeiros Varzielas +1 more
doaj +1 more source
Lepton flavour violation and flavour symmetries [PDF]
Fortschritte der Physik, 2012 AbstractIn this review article, we highlight the impact of models incorporating flavour symmetries on charged lepton flavour violating (LFV) processes. Flavour symmetries provide a natural approach to explain the peculiar mass hierarchies and mixing patterns of the Standard Model fermions.
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