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Related papers: Texture Zeros for Dirac Neutrinos and Current Expe…

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We study all possible neutrino mass matrices with one zero element and two equal non-zero elements, known as hybrid texture neutrino mass matrices. In the diagonal charged lepton basis, we consider thirty nine such possible cases which are…

High Energy Physics - Phenomenology · Physics 2016-03-23 Rupam Kalita , Debasish Borah

Neutrino oscillation, discovered over two decades ago, confirmed that neutrinos have nonzero masses. Since then, two mass-squared differences have been measured with unprecedented precision, yet the absolute neutrino mass scale remains…

High Energy Physics - Phenomenology · Physics 2025-08-08 Anirban Biswas , Shilpa Jangid , Seong Chan Park

The presence of a zero texture in the neutrino mass matrix can indicate the presence of an underlying symmetry which can generate neutrino mass and mixing. In this paper, for the first time we study the four-zero textures of the low energy…

High Energy Physics - Phenomenology · Physics 2016-12-07 Debasish Borah , Monojit Ghosh , Shivani Gupta , Suprabh Prakash , Sushant K. Raut

Within the framework of grand unified theories, we make full analysis of symmetric texture to see if such texture can reproduce large neutrino mixings, which have recently been confirmed by the observed solar and atmospheric neutrino…

High Energy Physics - Phenomenology · Physics 2009-11-10 Masako Bando , Midori Obara

We reconsider the phenomenological implications of two texture zeros in symmetric neutrino mass matrices in the light of the recent T2K result for the reactor angle and the new global analysis which gives also best fit values for the Dirac…

High Energy Physics - Phenomenology · Physics 2012-01-25 P. O. Ludl , S. Morisi , E. Peinado

After an Introduction briefly describing the rise and fall of the three-zero texture of the Zee model, we discuss still-allowed two-zero textures for the Majorana three-neutrino mass matrix. Finally, a model with two right-handed neutrinos…

High Energy Physics - Phenomenology · Physics 2009-11-10 Paul H. Frampton

Applying the $A_4$ symmetry in the scenario of unimodular second scheme of trimaximal $TM_2$ mixing matrix, where the charged lepton mass matrix is diagonal and the nature of neutrinos are Majorana, we investigate and analyze feasible two…

High Energy Physics - Phenomenology · Physics 2022-11-22 N. Razzaghi , S. M. M. Rasouli , P. Parada , P. V. Moniz

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

Amid the uncertainty regarding the fundamental nature of neutrinos, we adhere to the Dirac description, and construct a model in the framework of $\Delta(27)$ symmetry. The model successfully accounts for the hierarchical patterns of both…

High Energy Physics - Phenomenology · Physics 2025-01-23 Manash Dey , Subhankar Roy

We investigate neutrino mass matrix phenomenology involving scaling ansatz and texture zeros adhering inverse seesaw mechanism. It is seen that four is the maximum number of zeros in $m_D$ and $\mu$ to obtain viable phenomenology. Depending…

High Energy Physics - Phenomenology · Physics 2017-09-13 Ambar Ghosal , Rome Samanta

I systematically consider, in the context of the type-I see-saw mechanism, all the predictive cases in which both the Dirac mass matrix connecting the left-handed neutrinos to the right-handed neutrinos, and the Majorana mass matrix of the…

High Energy Physics - Phenomenology · Physics 2015-02-11 L. Lavoura

In 2004, two of us proposed a texture, the "Simplest" neutrino mass matrix, which predicted sin(theta13)=sqrt((2 Solar-Delta m^2)/(3 Atm-Delta m^2)) and delta_CP=90 degrees. Using today's measured values for neutrino mass-squared…

High Energy Physics - Phenomenology · Physics 2013-07-31 R. Krishnan , P. F. Harrison , W. G. Scott

We present a systematic procedure to establish a connection between complex neutrino mass matrix textures and experimental observables, including the Dirac CP phase. In addition, we illustrate how future experimental measurements affect the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Walter Winter

In this work we revisit the zero textures in low energy Majorana neutrino mass matrix when the active neutrino sector is extended by a light sterile neutrino in the eV scale i.e., the 3+1 scheme. In 3+1 scenario, the low energy neutrino…

High Energy Physics - Phenomenology · Physics 2017-09-27 Debasish Borah , Monojit Ghosh , Shivani Gupta , Sushant K. Raut

We study the existence of one/two texture zeros or one/two vanishing minors in the neutrino mass matrix with $\mu\tau$ symmetry. In the basis where the charged lepton mass matrix and the Dirac neutrino mass matrix are diagonal, the one/two…

High Energy Physics - Phenomenology · Physics 2011-08-05 S. Dev , Shivani Gupta , Radha Raman Gautam

We give a classification of heavy Majorana neutrino mass matrices with up to three texture zeroes, assuming the Dirac masses of the neutrinos to be of the same form as the ones of the up-quarks in the five texture zero solutions for the…

High Energy Physics - Phenomenology · Physics 2016-08-24 G. K. Leontaris , S. Lola , C. Scheich , J. D. Vergados

In view of the recent measurement of nonzero $\theta_{13}$, we carry out a systematic study of a simple class of neutrino models that has one diagonal texture or cofactor zero in the mass matrix. There are seven free parameters in the model…

High Energy Physics - Phenomenology · Physics 2013-08-27 Jiajun Liao , Danny Marfatia , Kerry Whisnant

We study the texture two zeros neutrino mass matrices using the standard parametrization for the neutrino mixing matrix. We find that if the origin of CP violation in the leptonic sector is not due to the Dirac-type complex phase of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Mohanta , G. Kranti , A. K. Giri

The generic predictions of inverse Majorana neutrino mass matrix, $M_{\nu}^{-1}$ with texture two zeros, in the basis where charged lepton mass matrix is diagonal, have been obtained for neutrino masses and mixings, especially,…

High Energy Physics - Phenomenology · Physics 2012-07-10 Surender Verma

We investigate 'Scaling ansatz' in the neutrino sector within the framework of type I seesaw mechanism with diagonal charged lepton and right handed Majorana neutrino mass matrices ($M_R$). We also assume four zero texture of Dirac neutrino…

High Energy Physics - Phenomenology · Physics 2013-10-18 Biswajit Adhikary , Mainak Chakraborty , Ambar Ghosal