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Related papers: Bi-Large neutrino mixing with charged lepton corre…

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We provide an explicit structure of the charged lepton mass matrix which is 2-3 symmetric except for a single breaking of this symmetry by the muon mass. We identify a flavor symmetric limit for the mass matrices where the first generation…

High Energy Physics - Phenomenology · Physics 2012-02-22 Ahmed Rashed , Alakabha Datta

Suppose the geometrical explaination to the weak CP phase in quark sector is also valid for neutrinos, the mixing and CP violation in neutrino system are discussed. We find a larger $J_{CP}$ than $3\times 10^{-3}$ implys the large-mixing…

High Energy Physics - Phenomenology · Physics 2018-01-17 Yong Liu , Utpal Sarkar

We explore some ways of minimally modifying the neutrino mixing matrix from tribimaximal, characterized by introducing at most one mixing angle and a CP violating phase thus extending our earlier work. One minimal modification, motivated to…

High Energy Physics - Phenomenology · Physics 2015-05-28 Xiao-Gang He , A. Zee

A model-independent ansatz to describe lepton and quark mixing in a unified way is suggested based upon the Cabibbo angle. In our framework neutrinos mix in a "Bi-Large" fashion, while the charged leptons mix as the "down-type" quarks do.…

High Energy Physics - Phenomenology · Physics 2014-10-15 S. Roy , S. Morisi , N. N. Singh , J. W. F. Valle

We present a supersymmetric $T_{13}$ model for the tri-bimaximal neutrino mixing, and the complete flavor group is $T_{13}\times Z_{4}\times Z_2$. At leading order, the residual symmetry of the charged lepton sector is $Z_3$, and the…

High Energy Physics - Phenomenology · Physics 2011-08-25 Gui-Jun Ding

It is a common believe that, if the Tri-bimaximal mixing (TBM) pattern is explained by vacuum alignment in an A(4) model, only a very small reactor angle, say \theta_{13} \sim \lambda^2_C being \lambda_C \equiv \theta_C the Cabibbo angle,…

High Energy Physics - Phenomenology · Physics 2010-05-28 Yin Lin

The Tri-Bi-Maximal pattern has been long investigated as the symmetric scenario that lies behind the neutrino mixing matrix. It predicts a null reactor angle and hence forbids $CP$ violation in the lepton sector, which is in contrast to the…

High Energy Physics - Phenomenology · Physics 2021-03-17 Diana C. Rivera-Agudelo , S. L. Tostado

In view of the fact that the data on neutrino mixing are still compatible with a situation where Bimaximal mixing is valid in first approximation and it is then corrected by terms of order of the Cabibbo angle, arising from the…

High Energy Physics - Phenomenology · Physics 2014-11-18 G. Altarelli , F. Feruglio , L. Merlo

We note that a simple two parameter description of lepton mixing is possible which reproduces the features that apparently emerge from global fits at the 1\sigma level: if U_{e3} is non-zero it implies that the solar neutrino mixing…

High Energy Physics - Phenomenology · Physics 2015-06-05 Werner Rodejohann , He Zhang

A new type of neutrino mixing named bi-pair neutrino mixing is proposed to describe the current neutrino mixing pattern with a vanishing reactor mixing angle and is determined by a mixing matrix with two pairs of identical magnitudes of…

High Energy Physics - Phenomenology · Physics 2011-02-11 Teruyuki Kitabayashi , Masaki Yasue

It is well-known that, in the basis where the charged-lepton mass matrix is diagonal, there are seven cases of two texture zeros in Majorana neutrino mass matrices that are compatible with all experimental data. We show that two of these…

High Energy Physics - Phenomenology · Physics 2011-06-07 W. Grimus , P. O. Ludl

We propose to consider the possibility that the observed value of $\theta_{13}$ is not the result of a correction from an initially vanishing value, but rather the result of a correction from an initially larger value. As an explicit…

High Energy Physics - Phenomenology · Physics 2015-06-18 Werner Rodejohann , He Zhang

We study a very specific type of neutrino mass and mixing structure based on the idea of Strong Scaling Ansatz (SSA) where the ratios of neutrino mass matrix elements belonging to two different columns are equal. There are three such…

High Energy Physics - Phenomenology · Physics 2015-06-23 Rupam Kalita , Debasish Borah , Mrinal Kumar Das

We consider a scenario for the Quark-Lepton Complementarity relations between mixing angles in which the bi-maximal mixing follows from the neutrino mass matrix. According to this scenario in the lowest order the angle \theta_{12} is \sim…

High Energy Physics - Phenomenology · Physics 2008-11-26 Michael A. Schmidt , Alexei Yu. Smirnov

We discuss the possibility of flavor symmetries to explain the pattern of charged lepton and neutrino masses and mixing angles. We emphasize what are the obstacles for the generation of an almost maximal atmospheric mixing and what are the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Shao-Long Chen , Michele Frigerio , Ernest Ma

We show that both small mixing in the quark sector and large mixing in the lepton sector can be obtained from a simple assumption of universality of Yukawa couplings and the right-handed neutrino Majorana mass matrix in leading order. We…

High Energy Physics - Phenomenology · Physics 2009-11-10 Radovan Dermisek

We argue that the tri-bimaximal neutrino mixing pattern $V_0$ or its generalized form $V'_0$, which includes two arbitrary Majorana phases of CP violation, may result from an underlying flavor symmetry at a superhigh energy scale close to…

High Energy Physics - Phenomenology · Physics 2009-11-11 Shu Luo , Zhi-zhong Xing

We analyze the effects of charged lepton corrections and renormalization group (RG) running on the low energy predictions of theories which accurately predict tri-bimaximal neutrino mixing at the high energy scale. In particular we focus on…

High Energy Physics - Phenomenology · Physics 2009-02-20 S. Boudjemaa , S. F. King

Tri/bi-maximal mixing (TBM) is a specific lepton mixing ansatz, which describes the trend of the current neutrino oscillation data, in particular the recent SNO and KAMLAND results. The significant feature of TBM in this respect is…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. F. Harrison , W. G. Scott

We review the application of non-Abelian discrete groups to Tri-Bimaximal (TB) neutrino mixing, which is supported by experiment as a possible good first approximation to the data. After summarizing the motivation and the formalism, we…

High Energy Physics - Phenomenology · Physics 2015-06-05 Guido Altarelli , Ferruccio Feruglio , Luca Merlo
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