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相关论文: Mixing angle and phase predictions from A5 with ge…

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Using discrete flavour group, $A_5$, combined with generalised CP, we study the mixing parameter correlations which arise from breaking to residual symmetries in the neutrino, $G_{\nu}=\mathbb{Z}_2\times \text{CP}$, and charged lepton…

高能物理 - 唯象学 · 物理学 2015-12-23 Jessica Turner

We produce five flavour models for the lepton sector. All five models fit perfectly well---at the one-sigma level---the existing data on the neutrino mass-squared differences and on the lepton mixing angles. The models are based on the…

高能物理 - 唯象学 · 物理学 2015-06-15 P. M. Ferreira , L. Lavoura , P. O. Ludl

An important class of flavour groups, that are subgroups of $U(3)$ and that predict experimentally viable lepton mixing parameters including Majorana phases, is the $\Delta(6n^2)$ series. The most well-known member is $\Delta(24)=S_4$. I…

高能物理 - 唯象学 · 物理学 2015-09-02 Thomas Neder

Generalised CP transformations are the only known framework which allows to predict Majorana phases in a flavour model purely from symmetry. For the first time generalised CP transformations are investigated for an infinite series of finite…

高能物理 - 唯象学 · 物理学 2015-06-19 Stephen F. King , Thomas Neder

The observed leptonic mixing pattern could be explained by the presence of a discrete flavour symmetry broken into residual subgroups at low energies. In this scenario, a residual generalised CP symmetry allows the parameters of the PMNS…

高能物理 - 唯象学 · 物理学 2015-11-25 Peter Ballett , Silvia Pascoli , Jessica Turner

Assuming three generations of Majorana neutrinos, we study the different mixing patterns that arise from the non-trivial breaking of the flavor group A5 and CP to the residual symmetries Z3, Z5 or Z2 x Z2 in the charged lepton and to Z2 x…

高能物理 - 唯象学 · 物理学 2015-09-30 Andrea Di Iura , Claudia Hagedorn , Davide Meloni

Experimentally viable lepton mixing parameters can be predicted in so-called direct flavour models with Majorana neutrinos using $\Delta(6n^2)$ groups as a flavour group. In direct models, in which the flavour group is broken to a…

高能物理 - 唯象学 · 物理学 2015-06-19 Thomas Neder

Flavour symmetries have been used to constrain both quark and lepton mixing parameters. In particular, they can be used to completely fix the mixing angles. For the lepton sector, assuming that neutrinos are Majorana particles, we have…

高能物理 - 唯象学 · 物理学 2014-10-16 Renato M. Fonseca , Walter Grimus

We propose to understand the mixing angles and CP-violating phases from the $\Delta(48)$ family symmetry combined with the generalized CP symmetry. A model-independent analysis is performed by scanning all the possible symmetry breaking…

高能物理 - 唯象学 · 物理学 2015-02-02 Gui-Jun Ding , Ye-Ling Zhou

Some properties of lepton mixing and neutrino masses can be computed under the assumption of A5 and CP as a symmetry in the leptonic sector. The results show that four mixing patterns accommodate well the oscillation data, i.e. all the…

高能物理 - 唯象学 · 物理学 2016-04-29 Andrea Di Iura

To search for possible textures of lepton mass matrices, we systematically examine flavor mixing structures which can lead to large lepton mixing angles. We find out 37 mixing patterns are consistent with experimental data, taking into…

高能物理 - 唯象学 · 物理学 2009-11-07 N. Haba , J. Sato , M. Tanimoto , K. Yoshioka

We discuss our recently proposed S3(down)xS3(up) flavour-permutation-symmetric mixing observables, giving expressions for them in terms of (moduli-squared) of the mixing matrix elements. We outline their successful use in providing…

高能物理 - 唯象学 · 物理学 2008-05-23 P. F. Harrison , D. R. J. Roythorne , W. G. Scott

The group $\Sigma(36\times3)$ with the generalized CP transformation is introduced to predict the mixing pattern of leptons. Various combinations of abelian residual flavor symmetries with CP transformations are surveyed. Six mixing…

高能物理 - 唯象学 · 物理学 2017-04-26 Shu-jun Rong

We suggest two alternative schemes to predict lepton mixing angles as well as $CP$ violating phases from a discrete flavor symmetry group combined with $CP$ symmetry. In the first scenario, the flavor and $CP$ symmetry is broken to the…

高能物理 - 唯象学 · 物理学 2017-01-25 Jun-Nan Lu , Gui-Jun Ding

We present a new model of the lepton sector that uses a family symmetry A4 to make predictions for lepton mixing which are invariant under any permutation of the three flavours. We show that those predictions broadly agree with the…

高能物理 - 唯象学 · 物理学 2015-06-16 P. M. Ferreira , L. Lavoura , P. O. Ludl

We furnish a supersymmetric extension of the Standard Model with a flavour discrete symmetry $A_5$ under which the lepton fields transform as an irreducible triplet. Additional (`flavon') superfields are used to break $A_5$ into a…

高能物理 - 唯象学 · 物理学 2015-06-18 I. de Medeiros Varzielas , L. Lavoura

Including the generalized CP symmetry, we have performed a comprehensive scan of leptonic mixing patterns which can be obtained from finite discrete groups with order less than 2000. Both the semidirect approach and its variant are…

高能物理 - 唯象学 · 物理学 2016-11-02 Chang-Yuan Yao , Gui-Jun Ding

Since the discovery of neutrino oscillations many ideas have been put forward to explain the special features of the leptonic mixing and the differences with respect to the quark sector. In this talk I review some of these proposals,…

高能物理 - 唯象学 · 物理学 2017-10-11 Ferruccio Feruglio

The pattern of lepton mixing can emerge from breaking a flavor symmetry in different ways in the neutrino and charged lepton Yukawa sectors. In this framework, we derive the conditions imposed on the mixing matrix by the structure of…

高能物理 - 唯象学 · 物理学 2013-05-30 D. Hernandez , A. Yu. Smirnov

We have performed a comprehensive analysis of the type D group $D^{(1)}_{9n, 3n}$ as flavor symmetry and the generalized CP symmetry. All possible residual symmetries and their consequences for the prediction of the mixing parameters are…

高能物理 - 唯象学 · 物理学 2016-05-25 Cai-Chang Li , Chang-Yuan Yao , Gui-Jun Ding
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