Results 31 to 40 of about 1,059 (279)
On the Flavour Problems and Their Symmetry Solution [PDF]
Progress of Theoretical Physics Supplement, 2009 n ...
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Symmetry constrained two Higgs doublet models
European 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
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Generation of SU(3) sum rule for charmed baryon decay
Journal of High Energy Physics, 2022 Flavor SU(3) symmetry is a powerful tool to analyze charmed baryon decays. In this work, we propose an approach to generate SU(3) sum rules for the singly and doubly charmed baryon decays without writing the Wigner-Eckhart invariants explicitly. The SU(3)
Di Wang
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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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Modular A5 symmetry for flavour model building [PDF]
Journal 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
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Simplified models of flavourful leptoquarks
European 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
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CPV Predictions from Flavour Symmetries [PDF]
Proceedings 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
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MODULAR SYMMETRY, TWISTED SECTORS AND FLAVOUR [PDF]
String Phenomenology, 2003 4 pages, ws-procs9x6.cls included.
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Flavour Symmetries and Kahler Operators [PDF]
Journal of High Energy Physics, 2004 Any supersymmetric mechanism to solve the flavour puzzle would generate mixing both in the superpotential Yukawa couplings and in the Kahler potential. In this paper we study, in a model independent way, the impact of the nontrivial structure of the Kahler potential on the physical mixing matrix, after kinetic terms are canonically normalized.
Espinosa, J. R., Ibarra, A.
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On the origin of neutrino flavour symmetry [PDF]
Journal of High Energy Physics, 2009 24 pages; version to be published in ...
King, Stephen F, Luhn, Christoph
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