Neutrino Mass Matrices with Two Vanishing Elements/Cofactors

Abstract

We study the phenomenological implications of the recent neutrino data for class B of two texture zeros and two vanishing cofactors for Majorana neutrinos in the flavor basis. We find that classes $B_1$($B_2$) of two texture zeros and classes $B_5$($B_6$) of two vanishing cofactors have similar predictions for neutrino oscillation parameters for the same mass hierarchy. Similar predictions for classes $B_3$($B_4$) of two texture zeros and classes $B_3$($B_4$) of two vanishing cofactors are expected. However, a preference for a shift in the quadrant of the Dirac-type CP violating phase($\delta$) in contrast to the earlier analysis has been predicted for a relatively large value of the reactor neutrino mixing angle(${\theta }_{13}$) for class B of two texture zeros and two vanishing cofactors for an inverted mass spectrum. No such shift in the quadrant of $\delta$ has been found for the normal mass spectrum.

15 pages, 10 figures and 3 tables

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Cited by in corpus (18)

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• Neutrino mass matrices with one texture equality and one vanishing neutrino mass
• Analysis of four-zero textures in $3+1$ framework
• New Hybrid Textures for Neutrino Mass Matrices
• Texture zeros of low-energy Majorana neutrino mass matrix in 3+1 scheme
• Texture zeros flavor neutrino mass matrix and triplet Higgs models
• Neutrino seesaw mechanism with texture zeros
• Magic square and Dirac flavor neutrino mass matrix
• Further study on the textures of neutrino mass matrix for maximal atmospherical mixing angle and Dirac CP phase
• Neutrino mass matrices with three or four vanishing cofactors and non diagonal charged lepton sector
• Phenomenology of Trimaximal mixing with one texture equality
• Magic square and three-zero textures for Dirac neutrinos
• Is magic texture for Majorana neutrino immanent in Dirac nature?
• Modified TM2 for Reproducing All Best-Fit Values of Neutrino Mixing Angles
• Embedding Generalized CP Symmetry in One Zero Texture Neutrino Mass Models