Results 31 to 40 of about 1,069 (280)

CPV Predictions from Flavour Symmetries [PDF]

open access: yesProceedings of Neutrino Oscillation Workshop — PoS(NOW2016), 2017
In the reference 3-neutrino mixing scheme leptonic CP violation can be caused by the Dirac, $\delta$, and/or Majorana, $\alpha_{21}$ and $\alpha_{31}$, CP-violating phases present in the unitary neutrino mixing matrix $U$. Using the fact that $U = U_e^\dagger U_\nu$, $U_e$ and $U_\nu$ being unitary matrices diagonalising the charged lepton and neutrino
Girardi I, Petcov S, Titov A
openaire   +2 more sources

Predicting the flavour and SUSY flavour structure from grand unified theories [PDF]

open access: yes, 2016
Grand Unified Theories (GUTs) offer an attractive framework for flavour models, since they feature relations between quarks and leptons. Combining them with Supersymmetry (SUSY) and flavour symmetries, we derive predictions for the flavour and SUSY ...
Sluka, Constantin
core   +1 more source

Symmetry constrained two Higgs doublet models

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We study two-Higgs-doublet models (2HDM) where Abelian symmetries have been introduced, leading to a drastic reduction in the number of free parameters in the 2HDM.
João M. Alves   +5 more
doaj   +1 more source

Modular binary octahedral symmetry for flavor structure of Standard Model

open access: yesJournal 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
doaj   +1 more source

Flavoured leptogenesis and CPμτ symmetry [PDF]

open access: yesJournal 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
openaire   +2 more sources

Weak decays of antitriplet charmed baryons from the perspective of flavor symmetry

open access: yesJournal 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
doaj   +1 more source

Breaking flavour symmetry spontaneously [PDF]

open access: yesPhysics Letters B, 1997
Major revisions in text, 12 pages, RevTeX, 5 ...
openaire   +2 more sources

Modular A5 symmetry for flavour model building [PDF]

open access: yesJournal of High Energy Physics, 2019
Abstract In the framework of the modular symmetry approach to lepton flavour, we consider a class of theories where matter superfields transform in representations of the finite modular group Γ5 ≃ A 5. We explicitly construct a basis for the 11 modular forms of weight 2 and level 5.
P. P. Novichkov   +3 more
openaire   +6 more sources

Simplified models of flavourful leptoquarks

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
We study the implications of single leptoquark extensions of the Standard Model (SM) under the assumption that their enhanced Yukawa sectors are invariant under global Abelian flavour symmetries already present in SM mass terms.
Ivo de Medeiros Varzielas, Jim Talbert
doaj   +1 more source

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