Results 81 to 90 of about 20,379 (180)

$\text{TM}_1$ neutrino mixing with $\sin \theta_{13}=\frac{1}{\sqrt{3}}\sin \frac{\pi}{12}$

, 2020
We construct a neutrino model using the flavour group $S_4\times C_4 \times C_3$ under the type-1 seesaw mechanism. The vacuum alignments of the flavons in the model lead to $\text{TM}_1$ mixing with $\sin \theta_{13}=\frac{1}{\sqrt{3}}\sin \frac{\pi}{12}
Krishnan, R
core  

The Aligned two-Higgs Doublet model [PDF]

, 2010
In the two-Higgs-Doublet model the alignment of the Yukawa flavour matrices of the two scalar doublets guarantees the absence of tree-level flavour-changing neutral couplings.
Pich, Antonio, Tuzon, Paula
core   +2 more sources

Yukawa textures from non-invertible symmetries

Journal of High Energy Physics
Phenomenological aspects of non-invertible symmetries, in particular the flavor structure of quarks and leptons, are studied. We start with a ℤ M discrete symmetry and gauge ℤ2 so as to obtain a non-invertible symmetry. We study which Yukawa textures can
Tatsuo Kobayashi, Hajime Otsuka, Morimitsu Tanimoto   +2 more
doaj   +1 more source

Predictions from a flavour GUT model combined with a SUSY breaking sector

Journal of High Energy Physics, 2017
We discuss how flavour GUT models in the context of supergravity can be completed with a simple SUSY breaking sector, such that the flavour-dependent (non-universal) soft breaking terms can be calculated.
Stefan Antusch, Christian Hohl
doaj   +1 more source

Goldstone Bosons in Effective Theories with Spontaneously Broken Flavour Symmetry

, 2010
The Flavour Symmetry of the Standard Model (SM) gauge sector is broken by the fermion Yukawa couplings. Promoting the Yukawa matrices to scalar spurion fields, one can break the flavour symmetry spontaneously by giving appropriate vacuum expectation ...
AJ Buras, AJ Buras, AL Kagan, B Stech, B Zumino, C Cheung, CD Froggatt, F Wilczek, F Wilczek, G D’Ambrosio, GL Kane, J Berger, J Preskill, J Wess, JE Kim, M Antonelli, M Artuso, M Ciuchini, M Leurer, M Leurer, M-C Chen, M. E. Albrecht, MA Shifman, P Fileviez Perez, P Langacker, PH Frampton, Q Chang, Q Chang, R Barbieri, R Barbieri, R Barbieri, R Mohanta, R Zwicky, RD Peccei, RD Peccei, RD Peccei, S Antusch, S Weinberg, SF King, T Feldmann, T Feldmann, T Feldmann, TE Browder, Th. Feldmann, Th. Mannel, V Barger, V Barger, V Cirigliano, WA Bardeen, Z Berezhiani, ZG Berezhiani   +50 more
core   +1 more source

More about quark Yukawa textures from selection rules without group actions

Journal of High Energy Physics
We study the coupling selection rules associated with non-group symmetries, i.e., ℤ2 gauging of ℤ M symmetries. We clarify which Yukawa textures can be derived by our selection rules for M = 3, 4, and 5, and obtain various textures including the nearest ...
Tatsuo Kobayashi, Yume Nishioka, Hajime Otsuka, Morimitsu Tanimoto   +3 more
doaj   +1 more source

Flavour symmetries in a renormalizable SO(10) model

Nuclear Physics B, 2016
In the context of a renormalizable supersymmetric SO(10) Grand Unified Theory, we consider the fermion mass matrices generated by the Yukawa couplings to a 10⊕120⊕126‾ representation of scalars. We perform a complete investigation of the possibilities of
P.M. Ferreira, W. Grimus, D. Jurčiukonis, L. Lavoura   +3 more
doaj   +1 more source

Potential of a Linear Collider for Lepton Flavour Violation studies in the SUSY seesaw

, 2012
We study the potential of an e+- e- Linear Collider for charged lepton flavour violation studies in a supersymmetric framework where neutrino masses and mixings are explained by a type-I seesaw.
Abada, A., Figueiredo, A. J. R., Romao, J. C., Teixeira, A. M.   +3 more
core   +3 more sources

Combining Flavour and CP Symmetries

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.
openaire   +2 more sources

Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′

Journal of High Energy Physics
We show that D → Pη′ decay amplitudes, where P = K, π, η, cannot be simply related to their D → Pη counterparts with a single η 0–η 8 mixing angle. We propose a novel, consistent treatment of η 0–η 8 mixing for application in D → Pη and D → Pη′ decays ...
Carolina Bolognani, Ulrich Nierste, Stefan Schacht, K. Keri Vos   +3 more
doaj   +1 more source