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相关论文: Breaking Tri-bimaximal Mixing and Large $\theta_{1…

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We show that the bimaximal neutrino mixing pattern suggested by the solar and atmospheric neutrino data can be derived from the maximal, symmetric, four neutrino mixing in the limit that one of the neutrinos is made heavy. Imposing the…

高能物理 - 唯象学 · 物理学 2009-10-31 R. N. Mohapatra , S. Nussinov

We propose a novel neutrino mixing pattern in terms of only two small integers 1 and 2 together with their square roots and the imaginary number $i$. This ansatz is referred to as the "tetra-maximal" mixing because it can be expressed as a…

高能物理 - 唯象学 · 物理学 2008-11-26 Zhi-zhong Xing

The neutrino mixing sum rule $\theta_{12} - \theta_{13}\cos(\delta) \approx \theta^\nu_{12}$ provides a possibility to explore the structure of the neutrino mass matrix in the presence of charged lepton corrections, since it relates the 1-2…

高能物理 - 唯象学 · 物理学 2010-10-27 S. Antusch , P. Huber , S. F. King , T. Schwetz

Using the type II seesaw approach and properties of discrete flavor symmetry group representations, we build a supersymmetric $A_{4}\times A_{3}$\ neutrino model with $\theta_{13}\neq0$. After describing the basis of this model--which is…

高能物理 - 唯象学 · 物理学 2016-06-22 R. Ahl Laamara , M. A Loualidi , E. H Saidi

Recently T2K gives hint in favor of large reactor angle. Most of the models, with tri-bimaximal mixing at the leading order, can not reproduce such a large mixing angle since they predict typically corrections for the reactor angle of the…

高能物理 - 唯象学 · 物理学 2011-10-18 S. Morisi , Ketan M. Patel , E. Peinado

We study the renormalization group running of the tri-bimaximal mixing predicted by the two typical $S_4$ flavor models at leading order. Although the textures of the mass matrices are completely different, the evolution of neutrino mass…

高能物理 - 唯象学 · 物理学 2011-08-05 Gui-Jun Ding , Dong-Mei Pan

It has recently been shown that the phenomenologically successful pattern of cobimaximal neutrino mixing ($\theta_{13} \neq 0$, $\theta_{23} = \pi/4$, and $\delta_{CP} = \pm \pi/2$) may be achieved in the context of the non-Abelian discrete…

高能物理 - 唯象学 · 物理学 2017-10-25 Ernest Ma , G. Rajasekaran

I review the construction of a model for lepton masses based on the flavour symmetry group A4 x U(1) reproducing the so-called tri-bimaximal lepton mixing scheme, in eccelent agreement with current data. The model predicts a neutrino…

高能物理 - 唯象学 · 物理学 2009-04-25 Ferruccio Feruglio

In a new application of the discrete non-Abelian symmetry A_4 using the canonical seesaw mechanism, a three-parameter form of the neutrino mass matrix is derived. It predicts the following mixing angles for neutrino oscillations:…

高能物理 - 唯象学 · 物理学 2009-11-11 Ernest Ma

We discuss the neutrino mass matrix which predicts zero or small values of |V_{13}| in MSSM and found the inequality, sin^2 2theta_{12} <= sin^2 2theta_sol, where sin^2 2theta_{12} is the mixing angle at M_R scale and sin^2 2theta_{sol} is…

高能物理 - 唯象学 · 物理学 2009-11-07 Takahiro Miura , Tetsuo Shindou , Eiichi Takasugi

In 2002, two neutrino mixing ansatze having trimaximally-mixed middle ($\nu_2$) columns, namely tri-chi-maximal mixing ($\text{T}\chi\text{M}$) and tri-phi-maximal mixing ($\text{T}\phi\text{M}$), were proposed. In 2012, it was shown that…

高能物理 - 唯象学 · 物理学 2018-02-01 R. Krishnan , P. F. Harrison , W. G. Scott

Over the last ten years tri-bimaximal mixing has played an important role in modeling the flavour problem. We give a short review of the status of flavour symmetry models of neutrino mixing. We concentrate on non-Abelian discrete…

高能物理 - 唯象学 · 物理学 2015-06-05 S. Morisi , J. W. F. Valle

We present a systematic study on minimally perturbed neutrino mass matrices which at the leading order give rise to Tri-BiMaximal (TBM) mixing due to a residual $\mathbb{Z}_2\times \mathbb{Z}_2^{\mu\tau}$ Klein symmetry in the neutrino mass…

高能物理 - 唯象学 · 物理学 2019-02-07 Rome Samanta , Mainak Chakraborty

We discuss the potential of the proposed Double Chooz reactor experiment to measure the neutrino mixing angle $\sin^2 2\theta_{13}$. We especially consider systematical uncertainties and their partial cancellation in a near and far detector…

高能物理 - 唯象学 · 物理学 2010-02-03 P. Huber , J. Kopp , M. Lindner , M. Rolinec , W. Winter

We make an attempt to study the present status of the tetra-maximal neutrino mixing (TMM) pattern. It predicts all the three leptonic mixing angles $\theta_{13} \approx 8.4^\circ, \theta_{12} \approx 30.4^\circ, $ and $\theta_{23} =…

高能物理 - 唯象学 · 物理学 2020-05-20 Newton Nath

The lepton mixing angle theta_13, the only unknown angle in the standard three-flavor neutrino mixing scheme, is finally measured by the recent reactor and accelerator neutrino experiments. We perform a combined analysis of the data coming…

高能物理 - 唯象学 · 物理学 2015-06-03 P. A. N. Machado , H. Minakata , H. Nunokawa , R. Zukanovich Funchal

In the model-independent context, where the neutrino mass matrix is assumed to be diagonalized by means of a unitary matrix that possess the Tri-Bi-Maximal (TBM) flavor mixing pattern. We present an analysis where the TBM deviation is…

高能物理 - 唯象学 · 物理学 2023-05-02 E. Barradas-Guevara , O. Félix-Beltrán , F. Gonzalez-Canales

Using a recent global analysis result after the precise measurement of $\theta_ {13}$, a possible Herimtian neutrino mixing ansatz is discussed, the mixing matrix is symmetric and also symmetric with respect with the second diagonal line in…

高能物理 - 唯象学 · 物理学 2013-01-21 Wu-zhong Guo , Miao Li

We study the renormalization group effects on neutrino masses and mixing in Minimal Supersymmetric Standard Model (MSSM) by considering a $\mu-\tau$ symmetric mass matrix at high energy scale giving rise to Tri-Bi-Maximal (TBM) type mixing.…

高能物理 - 唯象学 · 物理学 2014-07-10 Manikanta Borah , Debasish Borah , Mrinal Kumar Das

In 2002, two neutrino mixing ansatze having trimaximally mixed middle ($\nu_2$) columns, namely tri-chi-maximal mixing ($\text{T}\chi\text{M}$) and tri-phi-maximal mixing ($\text{T}\phi\text{M}$), were proposed. It was recently shown that…

高能物理 - 唯象学 · 物理学 2014-02-05 R. Krishnan