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We propose two new predictive neutrino mass matrix textures that deviate from $\mu$-$\tau$ symmetry and explore their phenomenological implications. These textures are significant due to their predictive nature and the unique approach they…

High Energy Physics - Phenomenology · Physics 2025-07-23 Pralay Chakraborty , Tanmay Dev , Subhankar Roy

We demonstrate that under the "symmetric zero texture" with minimal Majorana mass matrix, neutrino masses and mixing angles are expressed in terms of up-quark masses, $m_t,m_c,m_u$. This provides interesting relations among neutrino mixing…

High Energy Physics - Phenomenology · Physics 2017-08-23 Masako Bando , Midori Obara

Augmenting the Standard Model by three right-handed neutrinos allows for an anomaly-free gauge group extension G_max = U(1)_(B-L) x U(1)_(L_e-L_mu) x U(1)_(L_mu-L_tau). While simple U(1) subgroups of G_max have already been discussed in the…

High Energy Physics - Phenomenology · Physics 2012-07-13 Takeshi Araki , Julian Heeck , Jisuke Kubo

We propose a model that all quark and lepton mass matrices originally have the same zero texture. Namely their (1,1), (1,3) and (3,1) components are zeros. For the neutrino mass matrix, we further impose the symmetry between the second and…

High Energy Physics - Phenomenology · Physics 2009-11-07 H. Nishiura , K. Matsuda , T. Kikuchi , T. Fukuyama

Using the seesaw mechanism and a discrete symmetry, we construct a class of models for the neutrino mass matrix where the inverse of that matrix is the sum of a mu-tau antisymmetric background and a perturbation. We consider various…

High Energy Physics - Phenomenology · Physics 2009-11-11 Walter Grimus , Satoru Kaneko , Luis Lavoura , Hideyuki Sawanaka , Morimitsu Tanimoto

In the light of refined and large reactor mixing angle $\theta_{13}$, we have revisited the texture three and two zero neutrino mass matrices in the flavor basis. For Majorana neutrinos, it has been explicitly shown that all the texture…

High Energy Physics - Phenomenology · Physics 2019-12-06 Madan Singh , Gulsheen Ahuja , Manmohan Gupta

The recent T2K, MINOS and Double Chooz oscillation data hint a relatively large $\theta_{13}$, which can be accommodated by some general modification of the Tribimaximal/Bimaximal/Democratic mixing matrices. Using such matrices we analyze…

High Energy Physics - Phenomenology · Physics 2015-06-03 K. N. Deepthi , Srinu Gollu , R. Mohanta

We study the possibility of probing different texture zero neutrino mass matrices at long baseline neutrino experiment DUNE. Assuming a diagonal charged lepton basis and Majorana nature of light neutrinos, we first classify the possible…

High Energy Physics - Phenomenology · Physics 2017-10-11 Kalpana Bora , Debasish Borah , Debajyoti Dutta

we explore the consequences of assuming a simple 3-parameter form, first without T-violation, for the neutrino mass matrix M in the basis $\nu_e, \nu_\mu, \nu_\tau$ with a new symmetry. This matrix determines the three neutrino masses m_1,…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Friedberg , T. D. Lee

Current experimental data allow the zero value for one neutrino mass, either m_1 =0 or m_3 =0. This observation implies that a realistic neutrino mass texture can be established by starting from the limit (a) m_1 = m_2 =0 and m_3 \neq 0 or…

High Energy Physics - Phenomenology · Physics 2008-11-26 Shu Luo , Zhi-zhong Xing

The texture zero mass matrices for the leptons and the seesaw mechanism are used to derive relations between the matrix elements of the lepton mixing matrix and the ratios of the neutrino masses.

High Energy Physics - Phenomenology · Physics 2020-02-04 Harald Fritzsch

The searches for an underlying pattern in neutrino masses have motivated different proposals for textures in the neutrino mass matrix, which is also related to particular arrangements of the mixing matrix. Current experimental…

High Energy Physics - Phenomenology · Physics 2025-06-26 Diana C. Rivera-Agudelo , S. L. Tostado , Nelson E. Valderrama-Florez

We discuss the viability of the $\mu$--$\tau$ interchange symmetry imposed on the neutrino mass matrix in the flavor space. Whereas the exact symmetry is shown to lead to textures of completely degenerate spectrum which is incompatible with…

High Energy Physics - Phenomenology · Physics 2015-06-18 E. I. Lashin , N. Chamoun , C. Hamzaoui , S. Nasri

We perform a systematic and complete analysis of texture zeros in the lepton mass matrices and identify all viable and maximally restrictive cases of pairs (M_\ell, M_D) and (M_\ell, M_L), where M_\ell, M_D and M_L are the charged-lepton,…

High Energy Physics - Phenomenology · Physics 2014-10-17 Patrick Otto Ludl , Walter Grimus

We propose a neutrino model based on a $\Delta(54)$ flavor symmetry suitable for explaining the current neutrino oscillation data. Neutrino masses arise from the type II seesaw mechanism where the $\Delta(54)$ field assignments has led to a…

High Energy Physics - Phenomenology · Physics 2024-10-21 M. A. Loualidi

We present the general form of the unitary matrices keeping invariant the Majorana neutrino mass matrix of specific texture suitable for explaining oscillation data. In the case of the Tri-bimaximal pattern with two degenerate masses we…

High Energy Physics - Phenomenology · Physics 2011-02-01 E. I. Lashin , S. Nasri , E. Malkawi , N. Chamoun

We present analyses of the sixty hybrid textures of neutrino mass matrix, which have an equality of matrix elements and one zero. These textures are possibly derived in the models with discrete flavor symmetry. Only six textures among sixty…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Kaneko , H. Sawanaka , M. Tanimoto

In the context of the Type I seesaw mechanism, we carry out a systematic study of the constraints that result from zeros in both the Dirac and right-handed Majorana neutrino mass matrices. We find that most constraints can be expressed in…

High Energy Physics - Phenomenology · Physics 2015-10-08 Jiajun Liao , D. Marfatia , K. Whisnant

We construct a neutrino mass matrix $M_{\nu}$ via a seesaw mechanism whith perturbed invariant under a cyclic permutation by introducing one parameter $\delta$ into the diagonal elements of $M_{\nu}$ with assumption that trace of the…

High Energy Physics - Phenomenology · Physics 2011-05-11 Asan Damanik

In the light of non-zero and relatively large value of rector mixing angle ($\theta_{13}$), we have performed a detailed analysis of texture one zero neutrino mass matrix $M_{\nu}$ in the scenario of vanishing determinant/trace conditions ,…

High Energy Physics - Phenomenology · Physics 2019-11-14 Madan Singh
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