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Related papers: Trimaximal mixing with a texture zero

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The inverse neutrino seesaw, characterised by only one source of lepton number violation at an ultralight $O$(keV) scale and observable new phenomena at TeV energies accessible to the LHC, is considered. Maximal zero textures of the…

High Energy Physics - Phenomenology · Physics 2014-08-14 Biswajit Adhikary , Ambar Ghosal , Probir Roy

A highly predictive neutrino mass matrix texture is proposed. The texture is minimal and carries two interesting correlations. It gives precise and unambiguous answers to almost all the current issues related to observable parameters in…

High Energy Physics - Phenomenology · Physics 2025-08-12 Pralay Chakraborty , Sagar Tirtha Goswami , Subhankar Roy

In this work, we have assumed special structures for the charged and neutral mass matrices in the lepton sector, inspired by structures for the up and down quark mass matrices that result by assuming a certain number of symmetrical zeros in…

High Energy Physics - Phenomenology · Physics 2023-02-22 Richard H. Benavides , D. V. Forero , Luis Muñoz , Jose M. Muñoz , Alejandro Rico , A. Tapia

It has been shown that the neutrino mass matrices with two texture zeros in the charged lepton basis predict non-zero 1-3 mixing and are necessarily CP violating with one possible exception in class C for maximal mixing.

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Dev , Sanjeev Kumar , Surender Verma , Shivani Gupta

We investigate scaling ansatz with texture zeros within the framework of linear seesaw mechanism. In this variant of seesaw mechanism a simplified expression of effective neutrino mass matrix $m_\nu$ containing two Dirac type matrices…

High Energy Physics - Phenomenology · Physics 2018-05-09 Mainak Chakraborty , H. Zeen Devi , Ambar Ghosal

Within the framework of inverse seesaw mechanism we investigate neutrino mass matrices invariant under cyclic symmetry ($Z_3$) with maximal zero texture (6 zero textures). We explore two different approaches to obtain the cyclic symmetry…

High Energy Physics - Phenomenology · Physics 2016-10-12 Rome Samanta , Ambar Ghosal

Working within the context of texture-zeros mechanism for fermionic mass matrices, we provide necessary and sufficient conditions on the characteristic polynomial coefficients such that it has real, simple and positive roots. We translate…

High Energy Physics - Phenomenology · Physics 2014-01-30 A. Criollo , R. Noriega-Papaqui

We suggest a simple model, based on the type-I seesaw mechanism, for the lepton mass matrices. The model hinges on an Abelian symmetry which leads to mass matrices with some vanishing matrix elements. The model predicts one massless…

High Energy Physics - Phenomenology · Physics 2015-06-04 P. M. Ferreira , L. Lavoura

In view of recent neutrino experimental results such as SNO, Super-Kamiokande (SK), CHOOZ and neutrinoless double beta decay $(\beta\beta_{0\nu})$, we consider a texture of neutrino mass matrix which contains three parameters in order to…

High Energy Physics - Phenomenology · Physics 2009-11-07 Ambar Ghosal , Debasish Majumdar

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

The current study aimed to investigate the special case of two zeros in a Majorana neutrino mass matrix based on $A_4$ symmetry, where charged lepton mass matrix is diagonal. The texture $M_\nu^{S_7}$ with $(\mu, \mu)$ and $(\tau,\tau)$…

High Energy Physics - Phenomenology · Physics 2023-08-15 N. Razzaghi

For Majorana or Dirac neutrinos, using Fritzsch-like texture 4 zero mass matrices with parallel texture structures for the charged leptons and the Dirac neutrino mass matrix (M_{\nu D}), detailed predictions for cases pertaining to…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gulsheen Ahuja , Sanjeev Kumar , Monika Randhawa , Manmohan Gupta , S. Dev

For type I seesaw and in the basis where the charged lepton and heavy right-handed neutrino mass matrices are real and diagonal, four has been shown to be the maximum number of zeros allowed in the neutrino Yukawa coupling matrix $Y_\nu$.…

High Energy Physics - Phenomenology · Physics 2009-08-10 Sandhya Choubey , Werner Rodejohann , Probir Roy

We present a full phenomenological and analytical study for the neutrino mass matrix characterized by two vanishing $2\times2$ subtraces. We update one past result in light of the recent experimental data. Out of the fifteen possible…

High Energy Physics - Phenomenology · Physics 2023-03-08 A. Ismael , E. I. Lashin , N. Chamoun

The present manuscript studies a recently proposed new neutrino mixing scheme with a neutrino mass selection rule, $m_{\nu}^{13} + m_{\nu}^{22} + m_{\nu}^{31} = 0$, among a neutrino mass matrix elements. The neutrino mass matrix texture is…

High Energy Physics - Phenomenology · Physics 2026-01-05 Takaaki Nomura , Oleg Popov

We consider triplet Higgs model with $A_4$ symmetry to generate the neutrino mass matrix. The tribimaximal form of the neutrino mixing matrix can be naturally obtained. Imposing the neutrino oscillation data, we show that 1) both normal and…

High Energy Physics - Phenomenology · Physics 2014-11-18 Myoung Chu Oh , Seungwon Baek

We show that there exist six parallel textures of the charged lepton and neutrino mass matrices with six vanishing entries, whose phenomenological consequences are exactly the same. These {\it isomeric} lepton mass matrices are compatible…

High Energy Physics - Phenomenology · Physics 2009-11-10 Zhi-zhong Xing , Shun Zhou

We study the survivability of neutrino mass models with normal as well as inverted hierarchical mass patterns in the presence of both type I and type II seesaw contributions to neutrino mass within the framework of generic left-right…

High Energy Physics - Phenomenology · Physics 2013-02-27 Debasish Borah , Mrinal Kumar Das

Under the exponential parametrization scheme $ m^{\nu}_{ij}\sim r e^{i \theta}$, we propose a \emph{unique} neutrino mass matrix texture that exhibits four correlations among its elements. The mixing scheme obtained from the proposed…

High Energy Physics - Phenomenology · Physics 2025-07-29 Pralay Chakraborty , Subhankar Roy

We investigate Linear and Inverse seesaw mechanisms with maximal zero textures of the constituent matrices subjected to the assumption of non-zero eigenvalues for the neutrino mass matrix $m_\nu$ and charged lepton mass matrix $m_e$. If we…

High Energy Physics - Phenomenology · Physics 2016-06-07 Roopam Sinha , Rome Samanta , Ambar Ghosal