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Related papers: New mixing pattern for neutrinos

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Recently, the precise observations have yielded values for the neutrino mixing angles, denoted as ${\theta}_{12}$ and ${\theta}_{13}$. Therefore, constructing a neutrino mixing model capable of accurately reflecting a these measurements is…

High Energy Physics - Phenomenology · Physics 2023-10-30 Yuta Hyodo , Teruyuki Kitabayashi

Nonzero and relatively large of $\theta_{13}$ mixing angle has some phenomenological consequences on neutrino physics beyond the standard model. One of the consequences if the mixing angle $\theta_{13}\neq 0$ is the possibility of the CP…

High Energy Physics - Phenomenology · Physics 2014-10-16 Asan Damanik

The recent measurement of a non-zero neutrino mixing angle $\theta_{13}$ requires a modification of the tri-bimaximal mixing pattern that predicts a zero value for it. We propose a new neutrino mixing pattern based on a spontaneously-broken…

High Energy Physics - Phenomenology · Physics 2013-05-30 Y. H. Ahn , Seungwon Baek , Paolo Gondolo

The neutrino mixing angle theta(13) is at the focus of current neutrino research. From a global analysis of the available oscillation data in a 3-neutrino framework, we previously reported [Phys. Rev. Lett. 101, 141801 (2008)] hints in…

High Energy Physics - Phenomenology · Physics 2013-05-29 G. L. Fogli , E. Lisi , A. Marrone , A. Palazzo , A. M. Rotunno

After the successful determination of the reactor neutrino mixing angle \theta_13 ~ 0.16 \neq 0, a new feature suggested by the current neutrino oscillation data is a sizeable deviation of the atmospheric neutrino mixing angle \theta_23…

High Energy Physics - Phenomenology · Physics 2014-01-30 David Marzocca , Serguey T. Petcov , Andrea Romanino , Maria C. Sevilla

Nonzero of mixing angle $\theta_{13}$ has some phenomenological consequences on neutrino physics beyond the standard model. If the mixing angle $\theta_{13}\neq 0$, then there is the possibility of the CP violation existence on the neutrino…

High Energy Physics - Phenomenology · Physics 2015-07-21 Asan Damanik

At the previous Venice meeting NO-VE 2008, we discussed possible hints in favor of a nonzero value for the unknown neutrino mixing angle theta(13), emerging from the combination of solar and long-baseline reactor data, as well as from the…

High Energy Physics - Phenomenology · Physics 2009-07-16 G. L. Fogli , E. Lisi , A. Marrone , A. Palazzo , A. M. Rotunno

We introduce a new texture for neutrino mixing named Tri-Permuting (TP) mixing matrix. This pattern is characterized by maximal solar and atmospheric angles and by a large reactor angle satisfying sin(theta_13)=1/3. The correct lepton…

High Energy Physics - Phenomenology · Physics 2015-03-19 F. Bazzocchi

The smallness of the $\theta_{13}$ mixing angle as observed in neutrino oscillation experiments can be understood through an approximated $\mu - \tau$ exchange symmetry in the neutrino mass matrix. Using recent oscillation neutrino data,…

High Energy Physics - Phenomenology · Physics 2015-10-21 Diana C. Rivera-Agudelo , Abdel Pérez-Lorenzana

The JUNO collaboration has released its first measurement of reactor neutrino oscillations results, obtaining $\sin^2\theta_{12} = 0.3092\pm 0.0087$, an improvement in precision by a factor of 1.6 over previous combined results. We confront…

High Energy Physics - Phenomenology · Physics 2025-11-25 Xiao-Gang He

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:…

High Energy Physics - Phenomenology · Physics 2009-11-11 Ernest Ma

An attempt is made to explore the possibility for deviations of solar mixing angle ($\theta_{12}$) from tri-bimaximal mixings, without sacrificing the predictions of maximal atmospheric mixing angle ($\theta_{23}=\pi/4$) and zero reactor…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. Nimai Singh , Monisa Rajkhowa , Abhijit Borah

We present a model of neutrino mixing based on the flavour group $\Delta(27)$ in order to account for the observation of a non-zero reactor mixing angle ($\theta_{13}$). The model provides a common flavour structure for the charged-lepton…

High Energy Physics - Phenomenology · Physics 2014-06-10 P. F. Harrison , R. Krishnan , W. G. Scott

A brief review of the experimental status of neutrino mixing. The model of neutrino oscillations has now been established with high confidence, with many of the model parameters measured to an accuracy of a few per cent. However, some…

High Energy Physics - Experiment · Physics 2011-07-21 Justin Evans

The overall characteristics of the solar and atmospheric neutrino oscillation are approximately consistent with a tribimaximal form of the mixing matrix $U$ of the lepton sector. Exact tribimaximal mixing leads to $\theta_{13}=0$. However,…

High Energy Physics - Phenomenology · Physics 2016-05-03 N. Razzaghi , S. S. Gousheh

Relying upon the usefulness of the \mu-\tau symmetry, we find a new type of neutrino mass texture with a single phase parameter \delta that describes maximal atmospheric neutrino mixing and Dirac CP violation due to the presence of \delta.…

High Energy Physics - Phenomenology · Physics 2014-11-18 Ichiro Aizawa , Masaki Yasue

Many neutrino mixing scenarios that have \mu-\tau symmetry with \theta_{13}=0 are in disagreement with recent experimental results that indicate a nonzero value for \theta_{13}. We investigate the effect of small perturbations on Majorana…

High Energy Physics - Phenomenology · Physics 2013-01-07 Jiajun Liao , D. Marfatia , K. Whisnant

We suggest a minimal extension of the simplest A4 flavour model that can induce a nonzero theta13 value, as required by recent neutrino oscillation data from reactors and accelerators. The predicted correlation between the atmospheric…

High Energy Physics - Phenomenology · Physics 2013-08-09 S. Morisi , D. V. Forero , J. C. Romao , J. W. F. Valle

We diagonalize Majorana neutrino mass matrix with the help of PMNS matrix and obtain analytical relations between the mass matrix elements and mixing parameters, viz., three mixing angles- $\theta_{12}, \theta_{23}, \theta_{13}$ and Dirac…

High Energy Physics - Phenomenology · Physics 2019-05-21 Chandan Duarah

Assuming the Majorana nature of massive neutrinos, we generalize the Friedberg-Lee neutrino mass model to include CP violation in the neutrino mass matrix $M^{}_\nu$. We show that a favorable neutrino mixing pattern (with $\theta^{}_{12}…

High Energy Physics - Phenomenology · Physics 2014-11-18 Zhi-zhong Xing , He Zhang , Shun Zhou
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