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The phenomenology of most general quark mass matrices with minimum of three texture zeros obtained through weak basis (WB) transformations has been discussed within the framework of the standard Model (SM). The relationship of textures,…

High Energy Physics - Phenomenology · Physics 2013-12-02 Rohit Verma

We study the implications of the simultaneous existence of a texture zero and a vanishing minor in the neutrino mass matrix. There are thirty six possible texture structures of this type, twenty one of which reduce to two texture zero cases…

High Energy Physics - Phenomenology · Physics 2010-04-14 S. Dev , Surender Verma , Shivani Gupta , R. R. Gautam

Texture specific quark mass matrices which are hermitian and hierarchical are examined in detail . In the case of texture 6 zeros matrices, out of sixteen possibilities examined by us, none is able to fit the low energy data (LED), for…

High Energy Physics - Phenomenology · Physics 2009-12-30 Monika Randhawa , V. Bhatnagar , P. S. Gill , M. Gupta

We perform a systematic analysis of all possible texture zeros in general and symmetric quark mass matrices. Using the values of masses and mixing parameters at the electroweak scale, we identify for both cases the maximally restrictive…

High Energy Physics - Phenomenology · Physics 2015-06-23 Patrick Otto Ludl , Walter Grimus

Implications of texture specific mass matrices have been investigated for both quarks and neutrinos. Interestingly, for the case of quarks Fritzsch-like texture 4 zero mass matrices have been found to be compatible with the present…

High Energy Physics - Phenomenology · Physics 2015-05-14 Manmohan Gupta , Gulsheen Ahuja , Rohit Verma

The predictability of hierarchical quark mass matrices with symmetrically placed texture zeros is explored in the light of current precision measurements on quark masses and mixing data and interesting phenomenological relations among the…

High Energy Physics - Phenomenology · Physics 2017-12-06 Rohit Verma

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 systematically investigate general forms of mass matrices for three-generation up and down quarks, including asymmetrical ones in generation space. Viable zero matrix elements are explored which are compatible with the current…

High Energy Physics - Phenomenology · Physics 2009-11-11 Nobuhiro Uekusa , Atsushi Watanabe , Koichi Yoshioka

Texture specific fermion mass matrices have played an important role in understanding several features of fermion masses and mixings. In the present work, we have given an overview of all possible cases of Fritzsch-like as well as non…

High Energy Physics - Phenomenology · Physics 2015-06-05 Manmohan Gupta , Gulsheen Ahuja

We review the two-zero mass matrix textures approach for Dirac neutrinos with the most recent global fit in the oscillation parameters. We found that three of the 15 possible textures are compatible with current experimental data, while the…

High Energy Physics - Phenomenology · Physics 2024-11-14 Yessica Lenis , R. Martinez-Ramirez , Eduardo Peinado , William A. Ponce

Starting from a weak basis in which the up (or down) quark matrix is diagonal, we obtain an exact set of equations for the quark mass matrix elements in terms of known observables. We make a numerical analysis of the down (up) quark mass…

High Energy Physics - Phenomenology · Physics 2011-02-01 Maritza de Coss , Rodrigo Huerta

It is pointed out that the phase convention of the CKM matrix V affects texture analysis of the quark mass matrices (M_u, M_d) when we try to describe (M_u, M_d) by the observable quantities (quark masses and CKM matrix parameters) only.…

High Energy Physics - Phenomenology · Physics 2009-10-30 Yoshio Koide

We have found three types of neutrino mass textures, which give maximal CP-violation as well as maximal atmospheric neutrino mixing. These textures are described by six real mass parameters: one specified by two complex flavor neutrino…

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

In the context of texture 4 - zero and texture 5 - zero hierarchical quark mass matrices, CP violating asymmetry in $B^o_d({\bar B}^o_d) \to \psi K_S$ (sin2$\beta$) has been evaluated by considering quark masses at $m_Z$ scale. For a…

High Energy Physics - Phenomenology · Physics 2011-03-23 Monika Randhawa , Manmohan Gupta

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 constructed rephasing invariant measures of CP violation with elements of the neutrino mass matrix, in the basis in which the charged lepton mass matrix is diagonal. We discuss some examples of neutrino mass matrices with texture zeroes,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Utpal Sarkar , Santosh K. Singh

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

We reconsider an universal mass matrix model which has a seesaw-invariant structure with four-zero texture common to all quarks and leptons. The CKM quark and MNS lepton mixing matrices of the model are analyzed analytically.We show that…

High Energy Physics - Phenomenology · Physics 2014-11-18 Koichi Matsuda , Hiroyuki Nishiura

We have carried out an extensive analysis of all possible minimal texture quark mass matrices implying 169 texture 6 zero combinations. One finds that all these combinations are ruled out, a good number of these analytically, the other…

High Energy Physics - Phenomenology · Physics 2020-02-05 Shivali Kaundal , Aakriti Bagai , Gulsheen Ahuja , Manmohan Gupta

The phenomenological model that all quark and lepton mass matrices have the same zero texture, namely their (1,1), (1,3) and (3,1) components are zeros, is discussed in the context of SO(10) Grand Unified Theories (GUTs). The mass matrices…

High Energy Physics - Phenomenology · Physics 2009-10-31 K. Matsuda , H. Nishiura , T. Fukuyama