Results 31 to 40 of about 20,760 (329)
Flavour from accidental symmetries [PDF]
Journal of High Energy Physics, 2006 We consider a new approach to fermion masses and mixings in which no special "horizontal" dynamics is invoked to account for the hierarchical pattern of charged fermion masses and for the peculiar features of neutrino masses. The hierarchy follows from the vertical, family-independent structure of the model, in particular from the breaking pattern of ...
Ferretti L, King SF, Romanino, Andrea
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Flavoured leptogenesis and CPμτ symmetry [PDF]
Journal of High Energy Physics, 2020 Abstract We present a systematic study of leptogenesis in neutrino mass models with μτ-flavoured CP symmetry. In addition to the strong hierarchical N1-dominated scenario (N 1DS) in the ‘two flavour regime’ of leptogenesis, we show that one may choose the right-handed (RH) neutrino mass hierarchy as mild as M
Samanta, Rome, Sen, Manibrata
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Combining Flavour and CP Symmetries [PDF]
Journal of Physics: Conference Series, 2013 I shortly review the impact of the most recent neutrino oscillation data on our attempts to construct a realistic model for neutrino masses and mixing angles. Models based on anarchy and its variants remain an open possibility, reinforced by the latest experimental findings.
Ferruccio Feruglio
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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
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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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Modular binary octahedral symmetry for flavor structure of Standard Model
Journal of High Energy Physics, 2023 We have investigated the modular binary octahedral group 2O as a flavor symmetry to explain the structure of Standard Model. The vector-valued modular forms in all irreducible representations of this group are constructed. We have classified all possible
Gui-Jun Ding +3 more
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Leptogenesis and residual CP symmetry [PDF]
, 2016 We discuss flavour dependent leptogenesis in the framework of lepton flavour models based on discrete flavour and CP symmetries applied to the type-I seesaw model. Working in the flavour basis, we analyse the case of two general residual CP symmetries in
Chen, Peng +2 more
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Weak decays of antitriplet charmed baryons from the perspective of flavor symmetry
Journal of High Energy Physics, 2023 In this work, we carry out a global fit for the two-body weak decays of antitriplet charmed baryons in both SU(3) respected and broken scenarios incorporating all the available data up to date. In the SU(3) irreducible representation approach (IRA), more
Huiling Zhong +3 more
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Breaking flavour symmetry spontaneously [PDF]
Physics Letters B, 1997 Major revisions in text, 12 pages, RevTeX, 5 ...
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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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