Flavor structure in D-brane models: Majorana neutrino masses

Abstract

We study the flavor structure in intersecting D-brane models. We study anomalies of the discrete flavor symmetries. We analyze the Majorana neutrino masses, which can be generated by D-brane instanton effects. It is found that a certain pattern of mass matrix is obtained and the cyclic permutation symmetry remains unbroken. As a result, trimaximal mixing matrix can be realized if Dirac neutrino mass and charged lepton mass matrices are diagonal.

17 pages, 1 figure

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• (Non-)Abelian discrete anomalies
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• Discrete flavor symmetries in D-brane models
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• Neutrino Masses and Mixings from String Theory Instantons
• Zp charged branes in flux compactifications
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• String Constraints on Discrete Symmetries in MSSM Type II Quivers
• Massive modes in magnetized brane models
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Cited by in corpus (11)

• Gaussian Froggatt-Nielsen mechanism on magnetized orbifolds
• Gauge Origin of Discrete Flavor Symmetries in Heterotic Orbifolds
• Comprehensive Analysis of Yukawa Hierarchies on $T^2/Z_N$ with Magnetic Fluxes
• Charting the flavor landscape of MSSM-like Abelian heterotic orbifolds
• Exotic see-saw mechanism for neutrinos and leptogenesis in a Pati-Salam model
• Majorana neutrino mass structure induced by rigid instatons on toroidal orbifold
• Flavor structure in $SO(32)$ heterotic string theory
• Anomaly of non-Abelian discrete symmetries
• D-brane instanton induced mu-terms and their hierarchical structure
• Standard Model-like D-brane models and gauge couplings
• Seesaw mechanism in magnetic compactifications