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We present the generic formulas to calculate the ratios of neutrino masses and the Majorana phases of CP violation from the neutrino mass matrix with two independent vanishing entries in the flavor basis where the charged lepton mass matrix…

High Energy Physics - Phenomenology · Physics 2009-11-07 Zhi-zhong Xing

We consider the possibility of texture zeros in lepton mass matrices of the minimal left-right symmetric model (LRSM) where light neutrino mass arises from a combination of type I and type II seesaw mechanisms. Based on the allowed texture…

High Energy Physics - Phenomenology · Physics 2019-07-24 Happy Borgohain , Mrinal Kumar Das , Debasish Borah

A class of neutrino mass matrices with texture zeros realizable using the group $Z_3$ within the framework of type (I+II) seesaw mechanism naturally admits a non-zero $\theta_{13}$ and allows for deviations from maximal mixing. The…

High Energy Physics - Phenomenology · Physics 2015-05-30 Sanjeev Kumar

We analyse the parallel hybrid texture structures in the charged lepton and the neutrino sector. These parallel hybrid texture structures have physical implications as they cannot be obtained from arbitrary lepton mass matrices through weak…

High Energy Physics - Phenomenology · Physics 2010-11-11 S. Dev , Shivani Gupta , Radha Raman Gautam

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

Several intriguing aspects of neutrino oscillation phenomenology like the origin of small neutrino masses, the absolute neutrino mass scale, the neutrino mass hierarchy, i.e. normal or inverted and the nature of neutrinos, i.e. Dirac or…

High Energy Physics - Phenomenology · Physics 2014-03-18 Rohit Verma

We study a texture of neutrino mass matrix characterized by two constraints consisting of one equality and another antiequality between two elements corresponding to two pairs of the matrix entries. Amidst such textures, we limit our study…

High Energy Physics - Phenomenology · Physics 2024-12-02 N. Chamoun , E. I. Lashin

We study the implications of neutrino oscillations with maximal mixing for the neutrino Dirac and Majorana matrices in the see-saw mechanism for three non degenerate neutrino masses. We find the form of the Dirac matrix for a structure-less…

High Energy Physics - Phenomenology · Physics 2009-10-31 Guido Altarelli , Ferruccio Feruglio

We show a matrix decomposition of flavor mass matrix for Dirac neutrinos $M$ by sum as $M=M'+M^0$ where $M'$ obeys the feature of the magic square and $M^0$ is three-zero texture. The favorable three-zero textures in the context of magic…

High Energy Physics - Phenomenology · Physics 2023-01-25 Ryota Minamizawa , Yuta Hyodo , Teruyuki Kitabayashi

In the present paper, we have studied that the implication of a large value of the effective Majorana neutrino mass in case of neutrino mass matrices having either two equal elements and one zero element (popularly known as hybrid texture)…

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

We systematically analyze the Dirac and the Majorana mass matrices in seesaw models with two heavy right-handed neutrinos. We perform thorough classification of the vanishing matrix elements which are compatible with the results from the…

High Energy Physics - Phenomenology · Physics 2009-02-20 Srubabati Goswami , Atsushi Watanabe

Motivated by the first oscillation results from JUNO, we study the phenomenological viability of texture zeros in the Dirac neutrino mass matrix. The improved precision on the solar mixing angle $\sin^2{\theta_{12}}$ and the solar…

High Energy Physics - Phenomenology · Physics 2026-04-22 Priya , Ranjeet Kumar , Labh Singh , Surender Verma

We investigate the texture structures of lepton mass matrices with four (five) non-zero elements in the charged lepton mass matrix and three (four) vanishing cofactors in the neutrino mass matrix. Using weak basis transformations, all…

High Energy Physics - Phenomenology · Physics 2017-11-28 S. Dev , Desh Raj , Radha Raman Gautam

I investigate viable textures with two texture zeros for the inverted neutrino mass matrix, and present the predictions of those textures for the neutrino masses and for lepton mixing. By using an Abelian symmetry and one or two heavy…

High Energy Physics - Phenomenology · Physics 2011-07-19 L. Lavoura

The question of viability of texture 5 zero Fritzsch-like quark mass matrices are examined in the context of the latest quark mixing data.

High Energy Physics - Phenomenology · Physics 2014-10-28 Priyanka Fakay

There is still a problem in neutrino physics related to the configuration of neutrino masses: Are neutrinos arranged by masses following the Standard Model as three generations of fundamental particles, Gen III>Gen II>Gen I, thus forming a…

High Energy Physics - Phenomenology · Physics 2021-09-06 Z. B. Todorovic

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

We respond to the comments of S. Sharma et al. [Phys. Rev. D 91, 038301 (2015)] on my recent paper, Y. Giraldo [Phys. Rev. D 86, 093021 (2012)]. In their comments, they begin discussing a particular class of five-zero texture…

High Energy Physics - Phenomenology · Physics 2015-06-24 Yithsbey Giraldo

In this work, we investigate a predictive class of neutrino mass matrices characterized by one texture zero and one vanishing sub-trace within the framework of the scotogenic model, wherein neutrino masses, dark matter, and neutrinoless…

High Energy Physics - Phenomenology · Physics 2025-11-11 Ankush , Sangeeta Dey , Rishu Verma , Manoj Kumar , B. C. Chauhan , Mahadev Patgiri

In this work we study examples of hierarchical neutrino mass matrices inspired by family symmetries, compatible with experiments on neutrino oscillations, and for which there is a connection among the low energy CP violation phase…

High Energy Physics - Phenomenology · Physics 2009-11-10 L. Velasco-Sevilla
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